662868693 has 12 divisors (see below), whose sum is σ = 979744480. Its totient is φ = 431635176.

The previous prime is 662868649. The next prime is 662868781. The reversal of 662868693 is 396868266.

662868693 is a `hidden beast` number, since 6 + 628 + 6 + 8 + 6 + 9 + 3 = 666.

It is not a de Polignac number, because 662868693 - 2¹⁰ = 662867669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662868623) 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, 856033 + ... + 856806.

Almost surely, 2^662868693 is an apocalyptic number.

It is an amenable number.

662868693 is a deficient number, since it is larger than the sum of its proper divisors (316875787).

662868693 is a wasteful number, since it uses less digits than its factorization.

662868693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712888 (or 1712885 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 662868693 is about 25746.2364822511. The cubic root of 662868693 is about 871.9183866643.

The spelling of 662868693 in words is "six hundred sixty-two million, eight hundred sixty-eight thousand, six hundred ninety-three".