70864506 has 12 divisors (see below), whose sum is σ = 153539802. Its totient is φ = 23621496.

The previous prime is 70864499. The next prime is 70864537. The reversal of 70864506 is 60546807.

It is a happy number.

70864506 is a `hidden beast` number, since 7 + 0 + 8 + 645 + 0 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 70408881 + 455625 = 8391^2 + 675^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1968441 + ... + 1968476.

Almost surely, 2^70864506 is an apocalyptic number.

70864506 is an abundant number, since it is smaller than the sum of its proper divisors (82675296).

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

70864506 is a wasteful number, since it uses less digits than its factorization.

70864506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936925 (or 3936922 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 70864506 is about 8418.1058439533. The cubic root of 70864506 is about 413.8182006516.

The spelling of 70864506 in words is "seventy million, eight hundred sixty-four thousand, five hundred six".