70639494 has 8 divisors (see below), whose sum is σ = 141279000. Its totient is φ = 23546496.

The previous prime is 70639469. The next prime is 70639537. The reversal of 70639494 is 49493607.

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

70639494 is an admirable number.

It is a super-2 number, since 2×70639494² = 9979876225152072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5886619 + ... + 5886630.

It is an arithmetic number, because the mean of its divisors is an integer number (17659875).

Almost surely, 2^70639494 is an apocalyptic number.

70639494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70639494 is a wasteful number, since it uses less digits than its factorization.

70639494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11773254.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 70639494 is about 8404.7304537385. The cubic root of 70639494 is about 413.3797451930.

The spelling of 70639494 in words is "seventy million, six hundred thirty-nine thousand, four hundred ninety-four".