70769664 has 132 divisors (see below), whose sum is σ = 233751024. Its totient is φ = 20201472.

The previous prime is 70769581. The next prime is 70769669. The reversal of 70769664 is 46696707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70769669) 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 11 ways as a sum of consecutive naturals, for example, 63964 + ... + 65060.

Almost surely, 2^70769664 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 70769664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116875512).

70769664 is an abundant number, since it is smaller than the sum of its proper divisors (162981360).

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

70769664 is a wasteful number, since it uses less digits than its factorization.

70769664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1109 counting only the distinct ones).

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

The square root of 70769664 is about 8412.4707428912. The cubic root of 70769664 is about 413.6335060844.

The spelling of 70769664 in words is "seventy million, seven hundred sixty-nine thousand, six hundred sixty-four".