70764736 has 56 divisors (see below), whose sum is σ = 161519616. Its totient is φ = 30132480.

The previous prime is 70764731. The next prime is 70764737. The reversal of 70764736 is 63746707.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×70764736² = 10015295722299392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70764731) 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 7 ways as a sum of consecutive naturals, for example, 85155 + ... + 85981.

Almost surely, 2^70764736 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 70764736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80759808).

70764736 is an abundant number, since it is smaller than the sum of its proper divisors (90754880).

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

70764736 is a wasteful number, since it uses less digits than its factorization.

70764736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 70764736 is about 8412.1778392994. The cubic root of 70764736 is about 413.6239048272.

The spelling of 70764736 in words is "seventy million, seven hundred sixty-four thousand, seven hundred thirty-six".