79729452 has 36 divisors (see below), whose sum is σ = 219861096. Its totient is φ = 24160320.

The previous prime is 79729451. The next prime is 79729459. The reversal of 79729452 is 25492797.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 79729398 and 79729407.

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 11 ways as a sum of consecutive naturals, for example, 100273 + ... + 101064.

Almost surely, 2^79729452 is an apocalyptic number.

It is an amenable number.

79729452 is an abundant number, since it is smaller than the sum of its proper divisors (140131644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79729452 is a wasteful number, since it uses less digits than its factorization.

79729452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201358 (or 201353 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 79729452 is about 8929.1350084989. The cubic root of 79729452 is about 430.4006577543.

It can be divided in two parts, 7972 and 9452, that added together give a square (17424 = 132²).

The spelling of 79729452 in words is "seventy-nine million, seven hundred twenty-nine thousand, four hundred fifty-two".