80479873 has 2 divisors, whose sum is σ = 80479874. Its totient is φ = 80479872.

The previous prime is 80479859. The next prime is 80479879. The reversal of 80479873 is 37897408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79691329 + 788544 = 8927^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 80479873 - 2¹³ = 80471681 is a prime.

It is a super-2 number, since 2×80479873² = 12954019916192258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80479879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40239936 + 40239937.

It is an arithmetic number, because the mean of its divisors is an integer number (40239937).

Almost surely, 2^80479873 is an apocalyptic number.

It is an amenable number.

80479873 is a deficient number, since it is larger than the sum of its proper divisors (1).

80479873 is an equidigital number, since it uses as much as digits as its factorization.

80479873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 80479873 is about 8971.0575184869. The cubic root of 80479873 is about 431.7467669533.

The spelling of 80479873 in words is "eighty million, four hundred seventy-nine thousand, eight hundred seventy-three".