79804037 has 2 divisors, whose sum is σ = 79804038. Its totient is φ = 79804036.

The previous prime is 79804033. The next prime is 79804051. The reversal of 79804037 is 73040897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72829156 + 6974881 = 8534^2 + 2641^2 .

It is an emirp because it is prime and its reverse (73040897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79804037 - 2² = 79804033 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79804033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39902018 + 39902019.

It is an arithmetic number, because the mean of its divisors is an integer number (39902019).

Almost surely, 2^79804037 is an apocalyptic number.

It is an amenable number.

79804037 is a deficient number, since it is larger than the sum of its proper divisors (1).

79804037 is an equidigital number, since it uses as much as digits as its factorization.

79804037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 79804037 is about 8933.3105285779. The cubic root of 79804037 is about 430.5348257747.

The spelling of 79804037 in words is "seventy-nine million, eight hundred four thousand, thirty-seven".