70630639 has 8 divisors (see below), whose sum is σ = 73266512. Its totient is φ = 68040000.

The previous prime is 70630633. The next prime is 70630643. The reversal of 70630639 is 93603607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70630639 - 2¹⁵ = 70597871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70630633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8112 + ... + 14389.

It is an arithmetic number, because the mean of its divisors is an integer number (9158314).

Almost surely, 2^70630639 is an apocalyptic number.

70630639 is a deficient number, since it is larger than the sum of its proper divisors (2635873).

70630639 is a wasteful number, since it uses less digits than its factorization.

70630639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22617.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 70630639 is about 8404.2036505549. The cubic root of 70630639 is about 413.3624714254.

The spelling of 70630639 in words is "seventy million, six hundred thirty thousand, six hundred thirty-nine".