172812406 has 16 divisors (see below), whose sum is σ = 279617184. Its totient is φ = 79628544.

The previous prime is 172812397. The next prime is 172812413. The reversal of 172812406 is 604218271.

172812406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11686 + ... + 21958.

It is an arithmetic number, because the mean of its divisors is an integer number (17476074).

Almost surely, 2^172812406 is an apocalyptic number.

172812406 is a deficient number, since it is larger than the sum of its proper divisors (106804778).

172812406 is a wasteful number, since it uses less digits than its factorization.

172812406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10935.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 172812406 is about 13145.8132498526. The cubic root of 172812406 is about 557.0039892403.

The spelling of 172812406 in words is "one hundred seventy-two million, eight hundred twelve thousand, four hundred six".