69876664 has 64 divisors (see below), whose sum is σ = 163023840. Its totient is φ = 27586560.

The previous prime is 69876637. The next prime is 69876673. The reversal of 69876664 is 46667896.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17652 + ... + 21244.

Almost surely, 2^69876664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69876664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81511920).

69876664 is an abundant number, since it is smaller than the sum of its proper divisors (93147176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69876664 is a wasteful number, since it uses less digits than its factorization.

69876664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 3636 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The square root of 69876664 is about 8359.2262799855. The cubic root of 69876664 is about 411.8863387095.

The spelling of 69876664 in words is "sixty-nine million, eight hundred seventy-six thousand, six hundred sixty-four".