79223873 has 2 divisors, whose sum is σ = 79223874. Its totient is φ = 79223872.

The previous prime is 79223839. The next prime is 79223897. The reversal of 79223873 is 37832297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68674369 + 10549504 = 8287^2 + 3248^2 .

It is an emirp because it is prime and its reverse (37832297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79223873 - 2¹⁴ = 79207489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79223873.

It is not a weakly prime, because it can be changed into another prime (79223813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39611936 + 39611937.

It is an arithmetic number, because the mean of its divisors is an integer number (39611937).

Almost surely, 2^79223873 is an apocalyptic number.

It is an amenable number.

79223873 is a deficient number, since it is larger than the sum of its proper divisors (1).

79223873 is an equidigital number, since it uses as much as digits as its factorization.

79223873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 79223873 is about 8900.7793478998. The cubic root of 79223873 is about 429.4889782923.

The spelling of 79223873 in words is "seventy-nine million, two hundred twenty-three thousand, eight hundred seventy-three".