79470811 has 4 divisors (see below), whose sum is σ = 90823792. Its totient is φ = 68117832.

The previous prime is 79470803. The next prime is 79470871. The reversal of 79470811 is 11807497.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79470811 - 2³ = 79470803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79470871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5676480 + ... + 5676493.

It is an arithmetic number, because the mean of its divisors is an integer number (22705948).

Almost surely, 2^79470811 is an apocalyptic number.

79470811 is a deficient number, since it is larger than the sum of its proper divisors (11352981).

79470811 is a wasteful number, since it uses less digits than its factorization.

79470811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11352980.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 79470811 is about 8914.6402619511. The cubic root of 79470811 is about 429.9347494284.

The spelling of 79470811 in words is "seventy-nine million, four hundred seventy thousand, eight hundred eleven".