348232921 has 3 divisors (see below), whose sum is σ = 348251583. Its totient is φ = 348214260.

The previous prime is 348232883. The next prime is 348232961. The reversal of 348232921 is 129232843.

It is a happy number.

The square root of 348232921 is 18661.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 129232843 = 1303 ⋅99181.

It can be written as a sum of positive squares in only one way, i.e., 30680521 + 317552400 = 5539^2 + 17820^2 .

It is not a de Polignac number, because 348232921 - 2⁷ = 348232793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348232961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9331 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (116083861).

Almost surely, 2^348232921 is an apocalyptic number.

348232921 is the 18661-st square number.

348232921 is the 9331-st centered octagonal number.

It is an amenable number.

348232921 is a deficient number, since it is larger than the sum of its proper divisors (18662).

348232921 is an frugal number, since it uses more digits than its factorization.

348232921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37322 (or 18661 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The cubic root of 348232921 is about 703.5418588864.

Multiplying 348232921 by its product of digits (20736), we get a square (7220957849856 = 2687184²).

The spelling of 348232921 in words is "three hundred forty-eight million, two hundred thirty-two thousand, nine hundred twenty-one".