79089511 has 2 divisors, whose sum is σ = 79089512. Its totient is φ = 79089510.

The previous prime is 79089503. The next prime is 79089529. The reversal of 79089511 is 11598097.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79089511 - 2³ = 79089503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79089581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39544755 + 39544756.

It is an arithmetic number, because the mean of its divisors is an integer number (39544756).

Almost surely, 2^79089511 is an apocalyptic number.

79089511 is a deficient number, since it is larger than the sum of its proper divisors (1).

79089511 is an equidigital number, since it uses as much as digits as its factorization.

79089511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 79089511 is about 8893.2283789409. The cubic root of 79089511 is about 429.2460395165.

The spelling of 79089511 in words is "seventy-nine million, eighty-nine thousand, five hundred eleven".