172706916 has 12 divisors (see below), whose sum is σ = 402982832. Its totient is φ = 57568968.

The previous prime is 172706909. The next prime is 172706923. The reversal of 172706916 is 619607271.

It is an interprime number because it is at equal distance from previous prime (172706909) and next prime (172706923).

It is a tau number, because it is divible by the number of its divisors (12).

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, 7196110 + ... + 7196133.

Almost surely, 2^172706916 is an apocalyptic number.

It is an amenable number.

172706916 is an abundant number, since it is smaller than the sum of its proper divisors (230275916).

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

172706916 is a wasteful number, since it uses less digits than its factorization.

172706916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14392250 (or 14392248 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 172706916 is about 13141.8003332877. The cubic root of 172706916 is about 556.8906287237.

The spelling of 172706916 in words is "one hundred seventy-two million, seven hundred six thousand, nine hundred sixteen".