79278801 has 24 divisors (see below), whose sum is σ = 123503040. Its totient is φ = 44312352.

The previous prime is 79278757. The next prime is 79278809. The reversal of 79278801 is 10887297.

It is a de Polignac number, because none of the positive numbers 2^k-79278801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79278809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45535 + ... + 47243.

It is an arithmetic number, because the mean of its divisors is an integer number (5145960).

Almost surely, 2^79278801 is an apocalyptic number.

It is an amenable number.

79278801 is a deficient number, since it is larger than the sum of its proper divisors (44224239).

79278801 is a wasteful number, since it uses less digits than its factorization.

79278801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813 (or 1766 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 79278801 is about 8903.8643857597. The cubic root of 79278801 is about 429.5882140392.

The spelling of 79278801 in words is "seventy-nine million, two hundred seventy-eight thousand, eight hundred one".