79527801 has 4 divisors (see below), whose sum is σ = 106037072. Its totient is φ = 53018532.

The previous prime is 79527797. The next prime is 79527809. The reversal of 79527801 is 10872597.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 79527801 - 2² = 79527797 is a prime.

It is a super-2 number, since 2×79527801² = 12649342263791202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79527801.

It is not an unprimeable number, because it can be changed into a prime (79527809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13254631 + ... + 13254636.

It is an arithmetic number, because the mean of its divisors is an integer number (26509268).

Almost surely, 2^79527801 is an apocalyptic number.

It is an amenable number.

79527801 is a deficient number, since it is larger than the sum of its proper divisors (26509271).

79527801 is a wasteful number, since it uses less digits than its factorization.

79527801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26509270.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 79527801 is about 8917.8361164578. The cubic root of 79527801 is about 430.0374962795.

It can be divided in two parts, 7952 and 7801, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 79527801 in words is "seventy-nine million, five hundred twenty-seven thousand, eight hundred one".