79199906 has 32 divisors (see below), whose sum is σ = 130334832. Its totient is φ = 35942400.

The previous prime is 79199903. The next prime is 79199909. The reversal of 79199906 is 60999197.

It is an interprime number because it is at equal distance from previous prime (79199903) and next prime (79199909).

It can be written as a sum of positive squares in 8 ways, for example, as 76825225 + 2374681 = 8765^2 + 1541^2 .

It is a super-2 number, since 2×79199906² = 12545250220817672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79199903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197306 + ... + 197706.

Almost surely, 2^79199906 is an apocalyptic number.

79199906 is a deficient number, since it is larger than the sum of its proper divisors (51134926).

79199906 is a wasteful number, since it uses less digits than its factorization.

79199906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614.

The product of its (nonzero) digits is 275562, while the sum is 50.

The square root of 79199906 is about 8899.4329032810. The cubic root of 79199906 is about 429.4456639051.

The spelling of 79199906 in words is "seventy-nine million, one hundred ninety-nine thousand, nine hundred six".