79041749 has 2 divisors, whose sum is σ = 79041750. Its totient is φ = 79041748.

The previous prime is 79041737. The next prime is 79041763. The reversal of 79041749 is 94714097.

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., 77123524 + 1918225 = 8782^2 + 1385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79041749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79041779) 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, 39520874 + 39520875.

It is an arithmetic number, because the mean of its divisors is an integer number (39520875).

Almost surely, 2^79041749 is an apocalyptic number.

It is an amenable number.

79041749 is a deficient number, since it is larger than the sum of its proper divisors (1).

79041749 is an equidigital number, since it uses as much as digits as its factorization.

79041749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 79041749 is about 8890.5426718508. The cubic root of 79041749 is about 429.1596151710.

The spelling of 79041749 in words is "seventy-nine million, forty-one thousand, seven hundred forty-nine".