79885573 has 2 divisors, whose sum is σ = 79885574. Its totient is φ = 79885572.

The previous prime is 79885541. The next prime is 79885583. The reversal of 79885573 is 37558897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47087044 + 32798529 = 6862^2 + 5727^2 .

It is an emirp because it is prime and its reverse (37558897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79885573 - 2⁵ = 79885541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79885573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79885583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39942786 + 39942787.

It is an arithmetic number, because the mean of its divisors is an integer number (39942787).

Almost surely, 2^79885573 is an apocalyptic number.

It is an amenable number.

79885573 is a deficient number, since it is larger than the sum of its proper divisors (1).

79885573 is an equidigital number, since it uses as much as digits as its factorization.

79885573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 52.

The square root of 79885573 is about 8937.8729572533. The cubic root of 79885573 is about 430.6814020647.

The spelling of 79885573 in words is "seventy-nine million, eight hundred eighty-five thousand, five hundred seventy-three".