79528861 has 2 divisors, whose sum is σ = 79528862. Its totient is φ = 79528860.

The previous prime is 79528859. The next prime is 79528879. The reversal of 79528861 is 16882597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 34222500 = 6731^2 + 5850^2 .

It is an emirp because it is prime and its reverse (16882597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79528861 - 2¹ = 79528859 is a prime.

It is a super-3 number, since 3×79528861³ (a number of 25 digits) contains 333 as substring.

Together with 79528859, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79598861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39764430 + 39764431.

It is an arithmetic number, because the mean of its divisors is an integer number (39764431).

Almost surely, 2^79528861 is an apocalyptic number.

It is an amenable number.

79528861 is a deficient number, since it is larger than the sum of its proper divisors (1).

79528861 is an equidigital number, since it uses as much as digits as its factorization.

79528861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 46.

The square root of 79528861 is about 8917.8955477175. The cubic root of 79528861 is about 430.0394068806.

The spelling of 79528861 in words is "seventy-nine million, five hundred twenty-eight thousand, eight hundred sixty-one".