70665039 has 48 divisors (see below), whose sum is σ = 115644672. Its totient is φ = 41336064.

The previous prime is 70665019. The next prime is 70665053. The reversal of 70665039 is 93056607.

It is a happy number.

It is not a de Polignac number, because 70665039 - 2⁷ = 70664911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70664994 and 70665012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70665019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 151084 + ... + 151550.

It is an arithmetic number, because the mean of its divisors is an integer number (2409264).

Almost surely, 2^70665039 is an apocalyptic number.

70665039 is a deficient number, since it is larger than the sum of its proper divisors (44979633).

70665039 is a wasteful number, since it uses less digits than its factorization.

70665039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 70665039 is about 8406.2499962825. The cubic root of 70665039 is about 413.4295686575.

The spelling of 70665039 in words is "seventy million, six hundred sixty-five thousand, thirty-nine".