70879057 has 8 divisors (see below), whose sum is σ = 71675240. Its totient is φ = 70087680.

The previous prime is 70879043. The next prime is 70879091. The reversal of 70879057 is 75097807.

It can be written as a sum of positive squares in 4 ways, for example, as 4879681 + 65999376 = 2209^2 + 8124^2 .

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 70879057 - 2¹⁵ = 70846289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70879027) 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, 33919 + ... + 35947.

It is an arithmetic number, because the mean of its divisors is an integer number (8959405).

Almost surely, 2^70879057 is an apocalyptic number.

It is an amenable number.

70879057 is a deficient number, since it is larger than the sum of its proper divisors (796183).

70879057 is a wasteful number, since it uses less digits than its factorization.

70879057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 123480, while the sum is 43.

The square root of 70879057 is about 8418.9700676508. The cubic root of 70879057 is about 413.8465225713.

The spelling of 70879057 in words is "seventy million, eight hundred seventy-nine thousand, fifty-seven".