172723016 has 16 divisors (see below), whose sum is σ = 324143340. Its totient is φ = 86284800.

The previous prime is 172723003. The next prime is 172723063. The reversal of 172723016 is 610327271.

It can be written as a sum of positive squares in 2 ways, for example, as 150160516 + 22562500 = 12254^2 + 4750^2 .

It is a super-2 number, since 2×172723016² = 59666480512272512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172723016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620 + ... + 18596.

Almost surely, 2^172723016 is an apocalyptic number.

It is an amenable number.

172723016 is a deficient number, since it is larger than the sum of its proper divisors (151420324).

172723016 is a wasteful number, since it uses less digits than its factorization.

172723016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19184 (or 19180 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 172723016 is about 13142.4128682674. The cubic root of 172723016 is about 556.9079329150.

The spelling of 172723016 in words is "one hundred seventy-two million, seven hundred twenty-three thousand, sixteen".