79541573 has 2 divisors, whose sum is σ = 79541574. Its totient is φ = 79541572.

The previous prime is 79541563. The next prime is 79541633. The reversal of 79541573 is 37514597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52157284 + 27384289 = 7222^2 + 5233^2 .

It is a cyclic number.

It is not a de Polignac number, because 79541573 - 2⁴ = 79541557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79541573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79541563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39770786 + 39770787.

It is an arithmetic number, because the mean of its divisors is an integer number (39770787).

Almost surely, 2^79541573 is an apocalyptic number.

It is an amenable number.

79541573 is a deficient number, since it is larger than the sum of its proper divisors (1).

79541573 is an equidigital number, since it uses as much as digits as its factorization.

79541573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 41.

The square root of 79541573 is about 8918.6082434425. The cubic root of 79541573 is about 430.0623183522.

The spelling of 79541573 in words is "seventy-nine million, five hundred forty-one thousand, five hundred seventy-three".