662878953 has 12 divisors (see below), whose sum is σ = 1044536688. Its totient is φ = 401744760.

The previous prime is 662878903. The next prime is 662878961. The reversal of 662878953 is 359878266.

It is a happy number.

662878953 is a `hidden beast` number, since 6 + 628 + 7 + 8 + 9 + 5 + 3 = 666.

It is not a de Polignac number, because 662878953 - 2⁶ = 662878889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 662878953.

It is not an unprimeable number, because it can be changed into a prime (662878903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3347775 + ... + 3347972.

It is an arithmetic number, because the mean of its divisors is an integer number (87044724).

Almost surely, 2^662878953 is an apocalyptic number.

It is an amenable number.

662878953 is a deficient number, since it is larger than the sum of its proper divisors (381657735).

662878953 is a wasteful number, since it uses less digits than its factorization.

662878953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6695764 (or 6695761 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 662878953 is about 25746.4357339031. The cubic root of 662878953 is about 871.9228852106.

The spelling of 662878953 in words is "six hundred sixty-two million, eight hundred seventy-eight thousand, nine hundred fifty-three".