79867420 has 24 divisors (see below), whose sum is σ = 169848000. Its totient is φ = 31541952.

The previous prime is 79867409. The next prime is 79867433. The reversal of 79867420 is 2476897.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23695 + ... + 26854.

It is an arithmetic number, because the mean of its divisors is an integer number (7077000).

Almost surely, 2^79867420 is an apocalyptic number.

It is an amenable number.

79867420 is an abundant number, since it is smaller than the sum of its proper divisors (89980580).

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

79867420 is a wasteful number, since it uses less digits than its factorization.

79867420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50637 (or 50635 counting only the distinct ones).

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

The square root of 79867420 is about 8936.8573894854. The cubic root of 79867420 is about 430.6487772679.

The spelling of 79867420 in words is "seventy-nine million, eight hundred sixty-seven thousand, four hundred twenty".