172634972 has 6 divisors (see below), whose sum is σ = 302111208. Its totient is φ = 86317484.

The previous prime is 172634971. The next prime is 172635019. The reversal of 172634972 is 279436271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172634971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21579368 + ... + 21579375.

It is an arithmetic number, because the mean of its divisors is an integer number (50351868).

Almost surely, 2^172634972 is an apocalyptic number.

It is an amenable number.

172634972 is a deficient number, since it is larger than the sum of its proper divisors (129476236).

172634972 is a wasteful number, since it uses less digits than its factorization.

172634972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43158747 (or 43158745 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 172634972 is about 13139.0628280711. The cubic root of 172634972 is about 556.8132905664.

The spelling of 172634972 in words is "one hundred seventy-two million, six hundred thirty-four thousand, nine hundred seventy-two".