79140028 has 12 divisors (see below), whose sum is σ = 151085592. Its totient is φ = 35972720.

The previous prime is 79140023. The next prime is 79140059. The reversal of 79140028 is 82004197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79140023) 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, 899275 + ... + 899362.

It is an arithmetic number, because the mean of its divisors is an integer number (12590466).

Almost surely, 2^79140028 is an apocalyptic number.

It is an amenable number.

79140028 is a deficient number, since it is larger than the sum of its proper divisors (71945564).

79140028 is a wasteful number, since it uses less digits than its factorization.

79140028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798652 (or 1798650 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 79140028 is about 8896.0681202428. The cubic root of 79140028 is about 429.3374111230.

The spelling of 79140028 in words is "seventy-nine million, one hundred forty thousand, twenty-eight".