79545413 has 2 divisors, whose sum is σ = 79545414. Its totient is φ = 79545412.

The previous prime is 79545409. The next prime is 79545451. The reversal of 79545413 is 31454597.

It is an a-pointer prime, because the next prime (79545451) can be obtained adding 79545413 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74356129 + 5189284 = 8623^2 + 2278^2 .

It is a cyclic number.

It is not a de Polignac number, because 79545413 - 2² = 79545409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79535413) 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, 39772706 + 39772707.

It is an arithmetic number, because the mean of its divisors is an integer number (39772707).

Almost surely, 2^79545413 is an apocalyptic number.

It is an amenable number.

79545413 is a deficient number, since it is larger than the sum of its proper divisors (1).

79545413 is an equidigital number, since it uses as much as digits as its factorization.

79545413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 79545413 is about 8918.8235210705. The cubic root of 79545413 is about 430.0692388956.

The spelling of 79545413 in words is "seventy-nine million, five hundred forty-five thousand, four hundred thirteen".