70979292 has 18 divisors (see below), whose sum is σ = 179419968. Its totient is φ = 23659752.

The previous prime is 70979273. The next prime is 70979299. The reversal of 70979292 is 29297907.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70979299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 985788 + ... + 985859.

It is an arithmetic number, because the mean of its divisors is an integer number (9967776).

Almost surely, 2^70979292 is an apocalyptic number.

It is an amenable number.

70979292 is an abundant number, since it is smaller than the sum of its proper divisors (108440676).

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

70979292 is a wasteful number, since it uses less digits than its factorization.

70979292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971657 (or 1971652 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 70979292 is about 8424.9208898363. The cubic root of 70979292 is about 414.0415137255.

The spelling of 70979292 in words is "seventy million, nine hundred seventy-nine thousand, two hundred ninety-two".