79623637 has 2 divisors, whose sum is σ = 79623638. Its totient is φ = 79623636.

The previous prime is 79623619. The next prime is 79623683. The reversal of 79623637 is 73632697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79548561 + 75076 = 8919^2 + 274^2 .

It is a cyclic number.

It is not a de Polignac number, because 79623637 - 2²³ = 71235029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79623593 and 79623602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79623697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39811818 + 39811819.

It is an arithmetic number, because the mean of its divisors is an integer number (39811819).

Almost surely, 2^79623637 is an apocalyptic number.

It is an amenable number.

79623637 is a deficient number, since it is larger than the sum of its proper divisors (1).

79623637 is an equidigital number, since it uses as much as digits as its factorization.

79623637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 43.

The square root of 79623637 is about 8923.2077752342. The cubic root of 79623637 is about 430.2101676777.

The spelling of 79623637 in words is "seventy-nine million, six hundred twenty-three thousand, six hundred thirty-seven".