79099905 has 8 divisors (see below), whose sum is σ = 126559872. Its totient is φ = 42186608.

The previous prime is 79099901. The next prime is 79099927. The reversal of 79099905 is 50999097.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79099905 - 2² = 79099901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79099901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2636649 + ... + 2636678.

It is an arithmetic number, because the mean of its divisors is an integer number (15819984).

Almost surely, 2^79099905 is an apocalyptic number.

It is an amenable number.

79099905 is a deficient number, since it is larger than the sum of its proper divisors (47459967).

79099905 is a wasteful number, since it uses less digits than its factorization.

79099905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273335.

The product of its (nonzero) digits is 229635, while the sum is 48.

The square root of 79099905 is about 8893.8127369537. The cubic root of 79099905 is about 429.2648426332.

The spelling of 79099905 in words is "seventy-nine million, ninety-nine thousand, nine hundred five".