172906284 has 12 divisors (see below), whose sum is σ = 403448024. Its totient is φ = 57635424.

The previous prime is 172906277. The next prime is 172906319. The reversal of 172906284 is 482609271.

172906284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 7204417 + ... + 7204440.

Almost surely, 2^172906284 is an apocalyptic number.

It is an amenable number.

172906284 is an abundant number, since it is smaller than the sum of its proper divisors (230541740).

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

172906284 is a wasteful number, since it uses less digits than its factorization.

172906284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14408864 (or 14408862 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 172906284 is about 13149.3834075975. The cubic root of 172906284 is about 557.1048326073.

The spelling of 172906284 in words is "one hundred seventy-two million, nine hundred six thousand, two hundred eighty-four".