345642707 has 2 divisors, whose sum is σ = 345642708. Its totient is φ = 345642706.

The previous prime is 345642701. The next prime is 345642727. The reversal of 345642707 is 707246543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345642707 - 2¹⁰ = 345641683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345642701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172821353 + 172821354.

It is an arithmetic number, because the mean of its divisors is an integer number (172821354).

Almost surely, 2^345642707 is an apocalyptic number.

345642707 is a deficient number, since it is larger than the sum of its proper divisors (1).

345642707 is an equidigital number, since it uses as much as digits as its factorization.

345642707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 345642707 is about 18591.4686617276. The cubic root of 345642707 is about 701.7931624679.

The spelling of 345642707 in words is "three hundred forty-five million, six hundred forty-two thousand, seven hundred seven".