79803937 has 4 divisors (see below), whose sum is σ = 80626756. Its totient is φ = 78981120.

The previous prime is 79803923. The next prime is 79803947. The reversal of 79803937 is 73930897.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53012961 + 26790976 = 7281^2 + 5176^2 .

It is a cyclic number.

It is not a de Polignac number, because 79803937 - 2¹⁵ = 79771169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79803907) 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, 411264 + ... + 411457.

It is an arithmetic number, because the mean of its divisors is an integer number (20156689).

Almost surely, 2^79803937 is an apocalyptic number.

It is an amenable number.

79803937 is a deficient number, since it is larger than the sum of its proper divisors (822819).

79803937 is an equidigital number, since it uses as much as digits as its factorization.

79803937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822818.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 79803937 is about 8933.3049315469. The cubic root of 79803937 is about 430.5346459446.

The spelling of 79803937 in words is "seventy-nine million, eight hundred three thousand, nine hundred thirty-seven".