79589381 has 2 divisors, whose sum is σ = 79589382. Its totient is φ = 79589380.

The previous prime is 79589371. The next prime is 79589399. The reversal of 79589381 is 18398597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49984900 + 29604481 = 7070^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 79589381 - 2⁶ = 79589317 is a prime.

It is a super-2 number, since 2×79589381² = 12668939135926322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79589371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39794690 + 39794691.

It is an arithmetic number, because the mean of its divisors is an integer number (39794691).

Almost surely, 2^79589381 is an apocalyptic number.

It is an amenable number.

79589381 is a deficient number, since it is larger than the sum of its proper divisors (1).

79589381 is an equidigital number, since it uses as much as digits as its factorization.

79589381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 50.

The square root of 79589381 is about 8921.2880796441. The cubic root of 79589381 is about 430.1484632475.

The spelling of 79589381 in words is "seventy-nine million, five hundred eighty-nine thousand, three hundred eighty-one".