79120073 has 2 divisors, whose sum is σ = 79120074. Its totient is φ = 79120072.

The previous prime is 79120061. The next prime is 79120141. The reversal of 79120073 is 37002197.

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., 48958009 + 30162064 = 6997^2 + 5492^2 .

It is an emirp because it is prime and its reverse (37002197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79120073 - 2¹⁰ = 79119049 is a prime.

It is equal to p_4621097 and since 79120073 and 4621097 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (79120373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39560036 + 39560037.

It is an arithmetic number, because the mean of its divisors is an integer number (39560037).

Almost surely, 2^79120073 is an apocalyptic number.

It is an amenable number.

79120073 is a deficient number, since it is larger than the sum of its proper divisors (1).

79120073 is an equidigital number, since it uses as much as digits as its factorization.

79120073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 79120073 is about 8894.9464866294. The cubic root of 79120073 is about 429.3013225660.

The spelling of 79120073 in words is "seventy-nine million, one hundred twenty thousand, seventy-three".