69818964 has 12 divisors (see below), whose sum is σ = 162910944. Its totient is φ = 23272984.

The previous prime is 69818929. The next prime is 69818989. The reversal of 69818964 is 46981896.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2909112 + ... + 2909135.

It is an arithmetic number, because the mean of its divisors is an integer number (13575912).

Almost surely, 2^69818964 is an apocalyptic number.

It is an amenable number.

69818964 is an abundant number, since it is smaller than the sum of its proper divisors (93091980).

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

69818964 is a wasteful number, since it uses less digits than its factorization.

69818964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818254 (or 5818252 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 69818964 is about 8355.7742908722. The cubic root of 69818964 is about 411.7729370631.

The spelling of 69818964 in words is "sixty-nine million, eight hundred eighteen thousand, nine hundred sixty-four".