70664576 has 32 divisors (see below), whose sum is σ = 142381800. Its totient is φ = 34929664.

The previous prime is 70664557. The next prime is 70664617. The reversal of 70664576 is 67546607.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8291 + ... + 14493.

Almost surely, 2^70664576 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 70664576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71190900).

70664576 is an abundant number, since it is smaller than the sum of its proper divisors (71717224).

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

70664576 is an equidigital number, since it uses as much as digits as its factorization.

70664576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306 (or 6294 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 70664576 is about 8406.2224572039. Note that the first 3 decimals coincide. The cubic root of 70664576 is about 413.4286657201.

The spelling of 70664576 in words is "seventy million, six hundred sixty-four thousand, five hundred seventy-six".