872658406 has 16 divisors (see below), whose sum is σ = 1316716416. Its totient is φ = 433760256.

The previous prime is 872658361. The next prime is 872658421. The reversal of 872658406 is 604856278.

872658406 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, 310600 + ... + 313396.

It is an arithmetic number, because the mean of its divisors is an integer number (82294776).

Almost surely, 2^872658406 is an apocalyptic number.

872658406 is a deficient number, since it is larger than the sum of its proper divisors (444058010).

872658406 is a wasteful number, since it uses less digits than its factorization.

872658406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 872658406 is about 29540.7922371760. The cubic root of 872658406 is about 955.6116276082.

The spelling of 872658406 in words is "eight hundred seventy-two million, six hundred fifty-eight thousand, four hundred six".