347402345 has 4 divisors (see below), whose sum is σ = 416882820. Its totient is φ = 277921872.

The previous prime is 347402311. The next prime is 347402351. The reversal of 347402345 is 543204743.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197486809 + 149915536 = 14053^2 + 12244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347402345 is a prime.

It is a super-2 number, since 2×347402345² = 241376778622998050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34740230 + ... + 34740239.

It is an arithmetic number, because the mean of its divisors is an integer number (104220705).

Almost surely, 2^347402345 is an apocalyptic number.

It is an amenable number.

347402345 is a deficient number, since it is larger than the sum of its proper divisors (69480475).

347402345 is an equidigital number, since it uses as much as digits as its factorization.

347402345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69480474.

The product of its (nonzero) digits is 40320, while the sum is 32.

The square root of 347402345 is about 18638.7323871555. The cubic root of 347402345 is about 702.9820705559.

The spelling of 347402345 in words is "three hundred forty-seven million, four hundred two thousand, three hundred forty-five".