79497953 has 2 divisors, whose sum is σ = 79497954. Its totient is φ = 79497952.

The previous prime is 79497923. The next prime is 79497973. The reversal of 79497953 is 35979497.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40347904 + 39150049 = 6352^2 + 6257^2 .

It is a cyclic number.

It is not a de Polignac number, because 79497953 - 2⁸ = 79497697 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79497895 and 79497904.

It is not a weakly prime, because it can be changed into another prime (79497923) 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, 39748976 + 39748977.

It is an arithmetic number, because the mean of its divisors is an integer number (39748977).

Almost surely, 2^79497953 is an apocalyptic number.

It is an amenable number.

79497953 is a deficient number, since it is larger than the sum of its proper divisors (1).

79497953 is an equidigital number, since it uses as much as digits as its factorization.

79497953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2143260, while the sum is 53.

The square root of 79497953 is about 8916.1624592646. The cubic root of 79497953 is about 429.9836896644.

The spelling of 79497953 in words is "seventy-nine million, four hundred ninety-seven thousand, nine hundred fifty-three".