69643768 has 24 divisors (see below), whose sum is σ = 134227800. Its totient is φ = 33875424.

The previous prime is 69643751. The next prime is 69643771. The reversal of 69643768 is 86734696.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7773 + ... + 14131.

It is an arithmetic number, because the mean of its divisors is an integer number (5592825).

Almost surely, 2^69643768 is an apocalyptic number.

It is an amenable number.

69643768 is a deficient number, since it is larger than the sum of its proper divisors (64584032).

69643768 is a wasteful number, since it uses less digits than its factorization.

69643768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6439 (or 6398 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 69643768 is about 8345.2841773064. The cubic root of 69643768 is about 411.4282293960.

The spelling of 69643768 in words is "sixty-nine million, six hundred forty-three thousand, seven hundred sixty-eight".