79633663 has 2 divisors, whose sum is σ = 79633664. Its totient is φ = 79633662.

The previous prime is 79633639. The next prime is 79633669. The reversal of 79633663 is 36633697.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79633663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79633669) 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 as a sum of consecutive naturals, namely, 39816831 + 39816832.

It is an arithmetic number, because the mean of its divisors is an integer number (39816832).

Almost surely, 2^79633663 is an apocalyptic number.

79633663 is a deficient number, since it is larger than the sum of its proper divisors (1).

79633663 is an equidigital number, since it uses as much as digits as its factorization.

79633663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 43.

The square root of 79633663 is about 8923.7695510362. The cubic root of 79633663 is about 430.2282238994.

The spelling of 79633663 in words is "seventy-nine million, six hundred thirty-three thousand, six hundred sixty-three".