347949172 has 6 divisors (see below), whose sum is σ = 608911058. Its totient is φ = 173974584.

The previous prime is 347949169. The next prime is 347949179. The reversal of 347949172 is 271949743.

It can be written as a sum of positive squares in only one way, i.e., 334670436 + 13278736 = 18294^2 + 3644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347949179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43493643 + ... + 43493650.

Almost surely, 2^347949172 is an apocalyptic number.

It is an amenable number.

347949172 is a deficient number, since it is larger than the sum of its proper divisors (260961886).

347949172 is a wasteful number, since it uses less digits than its factorization.

347949172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86987297 (or 86987295 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The square root of 347949172 is about 18653.3957230312. The cubic root of 347949172 is about 703.3507190559.

The spelling of 347949172 in words is "three hundred forty-seven million, nine hundred forty-nine thousand, one hundred seventy-two".