79625089 has 2 divisors, whose sum is σ = 79625090. Its totient is φ = 79625088.

The previous prime is 79625087. The next prime is 79625101. The reversal of 79625089 is 98052697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42354064 + 37271025 = 6508^2 + 6105^2 .

It is a cyclic number.

It is not a de Polignac number, because 79625089 - 2¹ = 79625087 is a prime.

Together with 79625087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79625083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39812544 + 39812545.

It is an arithmetic number, because the mean of its divisors is an integer number (39812545).

Almost surely, 2^79625089 is an apocalyptic number.

It is an amenable number.

79625089 is a deficient number, since it is larger than the sum of its proper divisors (1).

79625089 is an equidigital number, since it uses as much as digits as its factorization.

79625089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 79625089 is about 8923.2891357391. The cubic root of 79625089 is about 430.2127827361.

The spelling of 79625089 in words is "seventy-nine million, six hundred twenty-five thousand, eighty-nine".