70937664 has 112 divisors (see below), whose sum is σ = 219260928. Its totient is φ = 19819008.

The previous prime is 70937663. The next prime is 70937687. The reversal of 70937664 is 46673907.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (70937663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62607 + ... + 63729.

Almost surely, 2^70937664 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 70937664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109630464).

70937664 is an abundant number, since it is smaller than the sum of its proper divisors (148323264).

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

70937664 is a wasteful number, since it uses less digits than its factorization.

70937664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 70937664 is about 8422.4499998516. The cubic root of 70937664 is about 413.9605554149.

The spelling of 70937664 in words is "seventy million, nine hundred thirty-seven thousand, six hundred sixty-four".