172694944 has 12 divisors (see below), whose sum is σ = 339993234. Its totient is φ = 86347456.

The previous prime is 172694941. The next prime is 172694957. The reversal of 172694944 is 449496271.

It can be written as a sum of positive squares in only one way, i.e., 172659600 + 35344 = 13140^2 + 188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 172694894 and 172694903.

It is not an unprimeable number, because it can be changed into a prime (172694941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2698327 + ... + 2698390.

Almost surely, 2^172694944 is an apocalyptic number.

It is an amenable number.

172694944 is a deficient number, since it is larger than the sum of its proper divisors (167298290).

172694944 is an equidigital number, since it uses as much as digits as its factorization.

172694944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396727 (or 5396719 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 172694944 is about 13141.3448322461. The cubic root of 172694944 is about 556.8777605869.

The spelling of 172694944 in words is "one hundred seventy-two million, six hundred ninety-four thousand, nine hundred forty-four".