348890489 has 4 divisors (see below), whose sum is σ = 348934656. Its totient is φ = 348846324.

The previous prime is 348890459. The next prime is 348890491. The reversal of 348890489 is 984098843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 348890489 - 2⁸ = 348890233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 348890489.

It is not an unprimeable number, because it can be changed into a prime (348890429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6629 + ... + 27234.

It is an arithmetic number, because the mean of its divisors is an integer number (87233664).

Almost surely, 2^348890489 is an apocalyptic number.

It is an amenable number.

348890489 is a deficient number, since it is larger than the sum of its proper divisors (44167).

348890489 is a wasteful number, since it uses less digits than its factorization.

348890489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44166.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The square root of 348890489 is about 18678.6104675910. The cubic root of 348890489 is about 703.9844129910.

The spelling of 348890489 in words is "three hundred forty-eight million, eight hundred ninety thousand, four hundred eighty-nine".