70645507 has 2 divisors, whose sum is σ = 70645508. Its totient is φ = 70645506.

The previous prime is 70645481. The next prime is 70645529. The reversal of 70645507 is 70554607.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70645507 is a prime.

It is not a weakly prime, because it can be changed into another prime (70645207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35322753 + 35322754.

It is an arithmetic number, because the mean of its divisors is an integer number (35322754).

Almost surely, 2^70645507 is an apocalyptic number.

70645507 is a deficient number, since it is larger than the sum of its proper divisors (1).

70645507 is an equidigital number, since it uses as much as digits as its factorization.

70645507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 70645507 is about 8405.0881613461. The cubic root of 70645507 is about 413.3914741459.

The spelling of 70645507 in words is "seventy million, six hundred forty-five thousand, five hundred seven".