79051530 has 32 divisors (see below), whose sum is σ = 200885184. Its totient is φ = 19840256.

The previous prime is 79051507. The next prime is 79051537. The reversal of 79051530 is 3515097.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (79051537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76992 + ... + 78011.

It is an arithmetic number, because the mean of its divisors is an integer number (6277662).

Almost surely, 2^79051530 is an apocalyptic number.

79051530 is an abundant number, since it is smaller than the sum of its proper divisors (121833654).

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

79051530 is a wasteful number, since it uses less digits than its factorization.

79051530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155030.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 79051530 is about 8891.0927337420. The cubic root of 79051530 is about 429.1773165213.

The spelling of 79051530 in words is "seventy-nine million, fifty-one thousand, five hundred thirty".