79561333 has 2 divisors, whose sum is σ = 79561334. Its totient is φ = 79561332.

The previous prime is 79561327. The next prime is 79561351. The reversal of 79561333 is 33316597.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66471409 + 13089924 = 8153^2 + 3618^2 .

It is an emirp because it is prime and its reverse (33316597) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79561333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79561292 and 79561301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79561373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39780666 + 39780667.

It is an arithmetic number, because the mean of its divisors is an integer number (39780667).

Almost surely, 2^79561333 is an apocalyptic number.

It is an amenable number.

79561333 is a deficient number, since it is larger than the sum of its proper divisors (1).

79561333 is an equidigital number, since it uses as much as digits as its factorization.

79561333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 37.

The square root of 79561333 is about 8919.7159708143. The cubic root of 79561333 is about 430.0979279396.

It can be divided in two parts, 795 and 61333, that added together give a triangular number (62128 = T₃₅₂).

The spelling of 79561333 in words is "seventy-nine million, five hundred sixty-one thousand, three hundred thirty-three".