70879642 has 16 divisors (see below), whose sum is σ = 110697192. Its totient is φ = 34007040.

The previous prime is 70879637. The next prime is 70879649. The reversal of 70879642 is 24697807.

It can be written as a sum of positive squares in 4 ways, for example, as 63377521 + 7502121 = 7961^2 + 2739^2 .

It is not an unprimeable number, because it can be changed into a prime (70879649) 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, 1159 + ... + 11962.

Almost surely, 2^70879642 is an apocalyptic number.

70879642 is a deficient number, since it is larger than the sum of its proper divisors (39817550).

70879642 is a wasteful number, since it uses less digits than its factorization.

70879642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13233.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 70879642 is about 8419.0048105462. The cubic root of 70879642 is about 413.8476611284.

The spelling of 70879642 in words is "seventy million, eight hundred seventy-nine thousand, six hundred forty-two".