79366869 has 6 divisors (see below), whose sum is σ = 114641046. Its totient is φ = 52911240.

The previous prime is 79366831. The next prime is 79366873. The reversal of 79366869 is 96866397.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 62252100 + 17114769 = 7890^2 + 4137^2 .

It is not a de Polignac number, because 79366869 - 2⁸ = 79366613 is a prime.

It is a super-2 number, since 2×79366869² = 12598199789726322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79361869) 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, 4409262 + ... + 4409279.

It is an arithmetic number, because the mean of its divisors is an integer number (19106841).

Almost surely, 2^79366869 is an apocalyptic number.

It is an amenable number.

79366869 is a deficient number, since it is larger than the sum of its proper divisors (35274177).

79366869 is a wasteful number, since it uses less digits than its factorization.

79366869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8818547 (or 8818544 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 79366869 is about 8908.8085061921. The cubic root of 79366869 is about 429.7472265952.

The spelling of 79366869 in words is "seventy-nine million, three hundred sixty-six thousand, eight hundred sixty-nine".