80078291 has 2 divisors, whose sum is σ = 80078292. Its totient is φ = 80078290.

The previous prime is 80078269. The next prime is 80078303. The reversal of 80078291 is 19287008.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80078291 - 2⁶ = 80078227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80078261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40039145 + 40039146.

It is an arithmetic number, because the mean of its divisors is an integer number (40039146).

Almost surely, 2^80078291 is an apocalyptic number.

80078291 is a deficient number, since it is larger than the sum of its proper divisors (1).

80078291 is an equidigital number, since it uses as much as digits as its factorization.

80078291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 80078291 is about 8948.6474396972. The cubic root of 80078291 is about 431.0274528839.

The spelling of 80078291 in words is "eighty million, seventy-eight thousand, two hundred ninety-one".