347405401 has 4 divisors (see below), whose sum is σ = 397034752. Its totient is φ = 297776052.

The previous prime is 347405389. The next prime is 347405417. The reversal of 347405401 is 104504743.

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 347405401 - 2⁵ = 347405369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 347405401.

It is not an unprimeable number, because it can be changed into a prime (347405441) 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, 24814665 + ... + 24814678.

It is an arithmetic number, because the mean of its divisors is an integer number (99258688).

Almost surely, 2^347405401 is an apocalyptic number.

It is an amenable number.

347405401 is a deficient number, since it is larger than the sum of its proper divisors (49629351).

347405401 is an equidigital number, since it uses as much as digits as its factorization.

347405401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49629350.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 347405401 is about 18638.8143667992. The cubic root of 347405401 is about 702.9841318612.

The spelling of 347405401 in words is "three hundred forty-seven million, four hundred five thousand, four hundred one".