70979439 has 8 divisors (see below), whose sum is σ = 94678272. Its totient is φ = 47300120.

The previous prime is 70979423. The next prime is 70979479. The reversal of 70979439 is 93497907.

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 70979439 - 2⁴ = 70979423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70979479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954 + ... + 16184.

It is an arithmetic number, because the mean of its divisors is an integer number (11834784).

Almost surely, 2^70979439 is an apocalyptic number.

70979439 is a deficient number, since it is larger than the sum of its proper divisors (23698833).

70979439 is a wasteful number, since it uses less digits than its factorization.

70979439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 70979439 is about 8424.9296139493. The cubic root of 70979439 is about 414.0417995556.

The spelling of 70979439 in words is "seventy million, nine hundred seventy-nine thousand, four hundred thirty-nine".