80463979 has 2 divisors, whose sum is σ = 80463980. Its totient is φ = 80463978.

The previous prime is 80463967. The next prime is 80463983. The reversal of 80463979 is 97936408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80463979 - 2⁵ = 80463947 is a prime.

It is not a weakly prime, because it can be changed into another prime (80463919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40231989 + 40231990.

It is an arithmetic number, because the mean of its divisors is an integer number (40231990).

Almost surely, 2^80463979 is an apocalyptic number.

80463979 is a deficient number, since it is larger than the sum of its proper divisors (1).

80463979 is an equidigital number, since it uses as much as digits as its factorization.

80463979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 80463979 is about 8970.1716260058. The cubic root of 80463979 is about 431.7183431390.

The spelling of 80463979 in words is "eighty million, four hundred sixty-three thousand, nine hundred seventy-nine".