79898671 has 2 divisors, whose sum is σ = 79898672. Its totient is φ = 79898670.

The previous prime is 79898641. The next prime is 79898701. The reversal of 79898671 is 17689897.

It is a balanced prime because it is at equal distance from previous prime (79898641) and next prime (79898701).

It is an emirp because it is prime and its reverse (17689897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79898671 - 2¹³ = 79890479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79898641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39949335 + 39949336.

It is an arithmetic number, because the mean of its divisors is an integer number (39949336).

Almost surely, 2^79898671 is an apocalyptic number.

79898671 is a deficient number, since it is larger than the sum of its proper divisors (1).

79898671 is an equidigital number, since it uses as much as digits as its factorization.

79898671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 55.

The square root of 79898671 is about 8938.6056518900. The cubic root of 79898671 is about 430.7049388834.

The spelling of 79898671 in words is "seventy-nine million, eight hundred ninety-eight thousand, six hundred seventy-one".