79888451 has 2 divisors, whose sum is σ = 79888452. Its totient is φ = 79888450.

The previous prime is 79888441. The next prime is 79888469. The reversal of 79888451 is 15488897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79888451 - 2⁶ = 79888387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79888451.

It is not a weakly prime, because it can be changed into another prime (79888421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39944225 + 39944226.

It is an arithmetic number, because the mean of its divisors is an integer number (39944226).

Almost surely, 2^79888451 is an apocalyptic number.

79888451 is a deficient number, since it is larger than the sum of its proper divisors (1).

79888451 is an equidigital number, since it uses as much as digits as its factorization.

79888451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 50.

The square root of 79888451 is about 8938.0339560778. The cubic root of 79888451 is about 430.6865739881.

The spelling of 79888451 in words is "seventy-nine million, eight hundred eighty-eight thousand, four hundred fifty-one".