345997433 has 4 divisors (see below), whose sum is σ = 346040448. Its totient is φ = 345954420.

The previous prime is 345997427. The next prime is 345997451. The reversal of 345997433 is 334799543.

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 345997433 - 2⁸ = 345997177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345997493) 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, 5441 + ... + 26862.

It is an arithmetic number, because the mean of its divisors is an integer number (86510112).

Almost surely, 2^345997433 is an apocalyptic number.

It is an amenable number.

345997433 is a deficient number, since it is larger than the sum of its proper divisors (43015).

345997433 is a wasteful number, since it uses less digits than its factorization.

345997433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43014.

The product of its digits is 1224720, while the sum is 47.

The square root of 345997433 is about 18601.0062362228. The cubic root of 345997433 is about 702.0331590141.

The spelling of 345997433 in words is "three hundred forty-five million, nine hundred ninety-seven thousand, four hundred thirty-three".