79529990 has 8 divisors (see below), whose sum is σ = 143154000. Its totient is φ = 31811992.

The previous prime is 79529981. The next prime is 79529993. The reversal of 79529990 is 9992597.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79529993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3976490 + ... + 3976509.

It is an arithmetic number, because the mean of its divisors is an integer number (17894250).

Almost surely, 2^79529990 is an apocalyptic number.

79529990 is a deficient number, since it is larger than the sum of its proper divisors (63624010).

79529990 is a wasteful number, since it uses less digits than its factorization.

79529990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7953006.

The product of its (nonzero) digits is 459270, while the sum is 50.

The square root of 79529990 is about 8917.9588471802. The cubic root of 79529990 is about 430.0414418324.

The spelling of 79529990 in words is "seventy-nine million, five hundred twenty-nine thousand, nine hundred ninety".