70664575 has 12 divisors (see below), whose sum is σ = 88166728. Its totient is φ = 56181600.

The previous prime is 70664557. The next prime is 70664617. The reversal of 70664575 is 57546607.

It is a happy number.

It is not a de Polignac number, because 70664575 - 2⁵ = 70664543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4596 + ... + 12745.

Almost surely, 2^70664575 is an apocalyptic number.

70664575 is a deficient number, since it is larger than the sum of its proper divisors (17502153).

70664575 is a wasteful number, since it uses less digits than its factorization.

70664575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17514 (or 17509 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 70664575 is about 8406.2223977242. Note that the first 3 decimals coincide. The cubic root of 70664575 is about 413.4286637699.

The spelling of 70664575 in words is "seventy million, six hundred sixty-four thousand, five hundred seventy-five".