662878456 has 32 divisors (see below), whose sum is σ = 1286064000. Its totient is φ = 319979520.

The previous prime is 662878429. The next prime is 662878481. The reversal of 662878456 is 654878266.

662878456 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, 108376 + ... + 114328.

It is an arithmetic number, because the mean of its divisors is an integer number (40189500).

Almost surely, 2^662878456 is an apocalyptic number.

It is an amenable number.

662878456 is a deficient number, since it is larger than the sum of its proper divisors (623185544).

662878456 is a wasteful number, since it uses less digits than its factorization.

662878456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439 (or 6435 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The square root of 662878456 is about 25746.4260820798. The cubic root of 662878456 is about 871.9226672996.

The spelling of 662878456 in words is "six hundred sixty-two million, eight hundred seventy-eight thousand, four hundred fifty-six".