79729455 has 16 divisors (see below), whose sum is σ = 137380320. Its totient is φ = 39251328.

The previous prime is 79729451. The next prime is 79729459. The reversal of 79729455 is 55492797.

It is an interprime number because it is at equal distance from previous prime (79729451) and next prime (79729459).

It is not a de Polignac number, because 79729455 - 2² = 79729451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79729451) 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, 204240 + ... + 204629.

It is an arithmetic number, because the mean of its divisors is an integer number (8586270).

Almost surely, 2^79729455 is an apocalyptic number.

79729455 is a deficient number, since it is larger than the sum of its proper divisors (57650865).

79729455 is a wasteful number, since it uses less digits than its factorization.

79729455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408890.

The product of its digits is 793800, while the sum is 48.

The square root of 79729455 is about 8929.1351764883. The cubic root of 79729455 is about 430.4006631526.

The spelling of 79729455 in words is "seventy-nine million, seven hundred twenty-nine thousand, four hundred fifty-five".