70624064 has 56 divisors (see below), whose sum is σ = 168615360. Its totient is φ = 28670976.

The previous prime is 70624061. The next prime is 70624087. The reversal of 70624064 is 46042607.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70624061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4364 + ... + 12660.

Almost surely, 2^70624064 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 70624064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84307680).

70624064 is an abundant number, since it is smaller than the sum of its proper divisors (97991296).

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

70624064 is a wasteful number, since it uses less digits than its factorization.

70624064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8335 (or 8325 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 70624064 is about 8403.8124681599. The cubic root of 70624064 is about 413.3496444020.

The spelling of 70624064 in words is "seventy million, six hundred twenty-four thousand, sixty-four".