79748953 has 2 divisors, whose sum is σ = 79748954. Its totient is φ = 79748952.

The previous prime is 79748917. The next prime is 79748983. The reversal of 79748953 is 35984797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73051209 + 6697744 = 8547^2 + 2588^2 .

It is a cyclic number.

It is not a de Polignac number, because 79748953 - 2⁹ = 79748441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79748953.

It is not a weakly prime, because it can be changed into another prime (79748983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39874476 + 39874477.

It is an arithmetic number, because the mean of its divisors is an integer number (39874477).

Almost surely, 2^79748953 is an apocalyptic number.

It is an amenable number.

79748953 is a deficient number, since it is larger than the sum of its proper divisors (1).

79748953 is an equidigital number, since it uses as much as digits as its factorization.

79748953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 52.

The square root of 79748953 is about 8930.2269288076. The cubic root of 79748953 is about 430.4357454114.

The spelling of 79748953 in words is "seventy-nine million, seven hundred forty-eight thousand, nine hundred fifty-three".