345663507 has 8 divisors (see below), whose sum is σ = 526725376. Its totient is φ = 197521992.

The previous prime is 345663503. The next prime is 345663529. The reversal of 345663507 is 705366543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345663507 - 2² = 345663503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345663503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8230063 + ... + 8230104.

It is an arithmetic number, because the mean of its divisors is an integer number (65840672).

Almost surely, 2^345663507 is an apocalyptic number.

345663507 is a deficient number, since it is larger than the sum of its proper divisors (181061869).

345663507 is a wasteful number, since it uses less digits than its factorization.

345663507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16460177.

The product of its (nonzero) digits is 226800, while the sum is 39.

The square root of 345663507 is about 18592.0280496776. The cubic root of 345663507 is about 701.8072396297.

The spelling of 345663507 in words is "three hundred forty-five million, six hundred sixty-three thousand, five hundred seven".