79533697 has 2 divisors, whose sum is σ = 79533698. Its totient is φ = 79533696.

The previous prime is 79533611. The next prime is 79533709. The reversal of 79533697 is 79633597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78694641 + 839056 = 8871^2 + 916^2 .

It is a cyclic number.

It is not a de Polignac number, because 79533697 - 2¹¹ = 79531649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79533697.

It is not a weakly prime, because it can be changed into another prime (79533607) 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, 39766848 + 39766849.

It is an arithmetic number, because the mean of its divisors is an integer number (39766849).

Almost surely, 2^79533697 is an apocalyptic number.

It is an amenable number.

79533697 is a deficient number, since it is larger than the sum of its proper divisors (1).

79533697 is an equidigital number, since it uses as much as digits as its factorization.

79533697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1071630, while the sum is 49.

The square root of 79533697 is about 8918.1666837977. The cubic root of 79533697 is about 430.0481233323.

The spelling of 79533697 in words is "seventy-nine million, five hundred thirty-three thousand, six hundred ninety-seven".