79288073 has 2 divisors, whose sum is σ = 79288074. Its totient is φ = 79288072.

The previous prime is 79288057. The next prime is 79288081. The reversal of 79288073 is 37088297.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55160329 + 24127744 = 7427^2 + 4912^2 .

It is an emirp because it is prime and its reverse (37088297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79288073 - 2⁴ = 79288057 is a prime.

It is not a weakly prime, because it can be changed into another prime (79288873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39644036 + 39644037.

It is an arithmetic number, because the mean of its divisors is an integer number (39644037).

Almost surely, 2^79288073 is an apocalyptic number.

It is an amenable number.

79288073 is a deficient number, since it is larger than the sum of its proper divisors (1).

79288073 is an equidigital number, since it uses as much as digits as its factorization.

79288073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 79288073 is about 8904.3850433368. The cubic root of 79288073 is about 429.6049607886.

The spelling of 79288073 in words is "seventy-nine million, two hundred eighty-eight thousand, seventy-three".