347430961 has 4 divisors (see below), whose sum is σ = 347468800. Its totient is φ = 347393124.

The previous prime is 347430947. The next prime is 347430983. The reversal of 347430961 is 169034743.

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 347430961 - 2⁷ = 347430833 is a prime.

It is a super-2 number, since 2×347430961² = 241416545322767042, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is the 18640-th Hogben number.

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 347430961.

It is not an unprimeable number, because it can be changed into a prime (347430911) by changing a digit.

It is a nontrivial repunit in base 18639.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4600 + ... + 26758.

It is an arithmetic number, because the mean of its divisors is an integer number (86867200).

Almost surely, 2^347430961 is an apocalyptic number.

It is an amenable number.

347430961 is a deficient number, since it is larger than the sum of its proper divisors (37839).

347430961 is a wasteful number, since it uses less digits than its factorization.

347430961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37838.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 347430961 is about 18639.5000201186. The cubic root of 347430961 is about 703.0013718865.

The spelling of 347430961 in words is "three hundred forty-seven million, four hundred thirty thousand, nine hundred sixty-one".