172745716 has 48 divisors (see below), whose sum is σ = 357456960. Its totient is φ = 72440160.

The previous prime is 172745693. The next prime is 172745719. The reversal of 172745716 is 617547271.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172745719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95775 + ... + 97561.

It is an arithmetic number, because the mean of its divisors is an integer number (7447020).

Almost surely, 2^172745716 is an apocalyptic number.

It is an amenable number.

172745716 is an abundant number, since it is smaller than the sum of its proper divisors (184711244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172745716 is a wasteful number, since it uses less digits than its factorization.

172745716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1813 counting only the distinct ones).

The product of its digits is 82320, while the sum is 40.

The square root of 172745716 is about 13143.2764560440. The cubic root of 172745716 is about 556.9323289231.

The spelling of 172745716 in words is "one hundred seventy-two million, seven hundred forty-five thousand, seven hundred sixteen".