662868694 has 16 divisors (see below), whose sum is σ = 1092142080. Its totient is φ = 300338280.

The previous prime is 662868649. The next prime is 662868781. The reversal of 662868694 is 496868266.

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, 378342 + ... + 380089.

It is an arithmetic number, because the mean of its divisors is an integer number (68258880).

Almost surely, 2^662868694 is an apocalyptic number.

662868694 is a deficient number, since it is larger than the sum of its proper divisors (429273386).

662868694 is a wasteful number, since it uses less digits than its factorization.

662868694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758475.

The product of its digits is 5971968, while the sum is 55.

The square root of 662868694 is about 25746.2365016715. The cubic root of 662868694 is about 871.9183871028.

The spelling of 662868694 in words is "six hundred sixty-two million, eight hundred sixty-eight thousand, six hundred ninety-four".