79099487 has 4 divisors (see below), whose sum is σ = 83752416. Its totient is φ = 74446560.

The previous prime is 79099477. The next prime is 79099511. The reversal of 79099487 is 78499097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78499097 = 227 ⋅345811.

It is a cyclic number.

It is not a de Polignac number, because 79099487 - 2²⁰ = 78050911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79099417) 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, 2326439 + ... + 2326472.

It is an arithmetic number, because the mean of its divisors is an integer number (20938104).

Almost surely, 2^79099487 is an apocalyptic number.

79099487 is a deficient number, since it is larger than the sum of its proper divisors (4652929).

79099487 is a wasteful number, since it uses less digits than its factorization.

79099487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652928.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 79099487 is about 8893.7892374398. The cubic root of 79099487 is about 429.2640864881.

The spelling of 79099487 in words is "seventy-nine million, ninety-nine thousand, four hundred eighty-seven".