69690887 has 12 divisors (see below), whose sum is σ = 81594360. Its totient is φ = 59348016.

The previous prime is 69690809. The next prime is 69690893. The reversal of 69690887 is 78809696.

It is not a de Polignac number, because 69690887 - 2¹⁰ = 69689863 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 (69690587) 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, 3164 + ... + 12222.

It is an arithmetic number, because the mean of its divisors is an integer number (6799530).

Almost surely, 2^69690887 is an apocalyptic number.

69690887 is a deficient number, since it is larger than the sum of its proper divisors (11903473).

69690887 is a wasteful number, since it uses less digits than its factorization.

69690887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9230 (or 9223 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 69690887 is about 8348.1067913629. The cubic root of 69690887 is about 411.5209953721.

The spelling of 69690887 in words is "sixty-nine million, six hundred ninety thousand, eight hundred eighty-seven".