345432661 has 4 divisors (see below), whose sum is σ = 394780192. Its totient is φ = 296085132.

The previous prime is 345432649. The next prime is 345432671. The reversal of 345432661 is 166234543.

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.

It is not a de Polignac number, because 345432661 - 2⁷ = 345432533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345432671) 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, 24673755 + ... + 24673768.

It is an arithmetic number, because the mean of its divisors is an integer number (98695048).

Almost surely, 2^345432661 is an apocalyptic number.

It is an amenable number.

345432661 is a deficient number, since it is larger than the sum of its proper divisors (49347531).

345432661 is an equidigital number, since it uses as much as digits as its factorization.

345432661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49347530.

The product of its digits is 51840, while the sum is 34.

The square root of 345432661 is about 18585.8188143541. The cubic root of 345432661 is about 701.6509744862.

The spelling of 345432661 in words is "three hundred forty-five million, four hundred thirty-two thousand, six hundred sixty-one".