69770664 has 24 divisors (see below), whose sum is σ = 188962410. Its totient is φ = 23256864.

The previous prime is 69770663. The next prime is 69770671. The reversal of 69770664 is 46607796.

It can be written as a sum of positive squares in only one way, i.e., 62252100 + 7518564 = 7890^2 + 2742^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (69770663) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 484447 + ... + 484590.

Almost surely, 2^69770664 is an apocalyptic number.

It is an amenable number.

69770664 is an abundant number, since it is smaller than the sum of its proper divisors (119191746).

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

69770664 is a wasteful number, since it uses less digits than its factorization.

69770664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969049 (or 969042 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 69770664 is about 8352.8835739522. The cubic root of 69770664 is about 411.6779618122.

The spelling of 69770664 in words is "sixty-nine million, seven hundred seventy thousand, six hundred sixty-four".