70627664 has 40 divisors (see below), whose sum is σ = 143508672. Its totient is φ = 33608960.

The previous prime is 70627657. The next prime is 70627681. The reversal of 70627664 is 46672607.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 103067 + ... + 103749.

Almost surely, 2^70627664 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 70627664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71754336).

70627664 is an abundant number, since it is smaller than the sum of its proper divisors (72881008).

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

70627664 is a wasteful number, since it uses less digits than its factorization.

70627664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 70627664 is about 8404.0266539320. The cubic root of 70627664 is about 413.3566676617.

The spelling of 70627664 in words is "seventy million, six hundred twenty-seven thousand, six hundred sixty-four".