70621564 has 24 divisors (see below), whose sum is σ = 133550480. Its totient is φ = 32482944.

The previous prime is 70621559. The next prime is 70621597. The reversal of 70621564 is 46512607.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14107 + ... + 18445.

Almost surely, 2^70621564 is an apocalyptic number.

It is an amenable number.

70621564 is a deficient number, since it is larger than the sum of its proper divisors (62928916).

70621564 is a wasteful number, since it uses less digits than its factorization.

70621564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669 (or 4667 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 70621564 is about 8403.6637248286. The cubic root of 70621564 is about 413.3447669979.

The spelling of 70621564 in words is "seventy million, six hundred twenty-one thousand, five hundred sixty-four".