79882549 has 2 divisors, whose sum is σ = 79882550. Its totient is φ = 79882548.

The previous prime is 79882531. The next prime is 79882553. The reversal of 79882549 is 94528897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45131524 + 34751025 = 6718^2 + 5895^2 .

It is an emirp because it is prime and its reverse (94528897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79882549 - 2⁷ = 79882421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79882496 and 79882505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79882589) 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, 39941274 + 39941275.

It is an arithmetic number, because the mean of its divisors is an integer number (39941275).

Almost surely, 2^79882549 is an apocalyptic number.

It is an amenable number.

79882549 is a deficient number, since it is larger than the sum of its proper divisors (1).

79882549 is an equidigital number, since it uses as much as digits as its factorization.

79882549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 79882549 is about 8937.7037878865. The cubic root of 79882549 is about 430.6759676375.

The spelling of 79882549 in words is "seventy-nine million, eight hundred eighty-two thousand, five hundred forty-nine".