347772961 has 8 divisors (see below), whose sum is σ = 368689320. Its totient is φ = 326907648.

The previous prime is 347772923. The next prime is 347772967. The reversal of 347772961 is 169277743.

It can be written as a sum of positive squares in 4 ways, for example, as 169390225 + 178382736 = 13015^2 + 13356^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 347772961 - 2⁹ = 347772449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347772967) 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, 1755 + ... + 26431.

It is an arithmetic number, because the mean of its divisors is an integer number (46086165).

Almost surely, 2^347772961 is an apocalyptic number.

It is an amenable number.

347772961 is a deficient number, since it is larger than the sum of its proper divisors (20916359).

347772961 is a wasteful number, since it uses less digits than its factorization.

347772961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25523.

The product of its digits is 444528, while the sum is 46.

The square root of 347772961 is about 18648.6718293824. The cubic root of 347772961 is about 703.2319669782.

The spelling of 347772961 in words is "three hundred forty-seven million, seven hundred seventy-two thousand, nine hundred sixty-one".