80494663 has 2 divisors, whose sum is σ = 80494664. Its totient is φ = 80494662.

The previous prime is 80494649. The next prime is 80494669. The reversal of 80494663 is 36649408.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80494663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80494669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40247331 + 40247332.

It is an arithmetic number, because the mean of its divisors is an integer number (40247332).

Almost surely, 2^80494663 is an apocalyptic number.

80494663 is a deficient number, since it is larger than the sum of its proper divisors (1).

80494663 is an equidigital number, since it uses as much as digits as its factorization.

80494663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 80494663 is about 8971.8817981514. The cubic root of 80494663 is about 431.7732130833.

The spelling of 80494663 in words is "eighty million, four hundred ninety-four thousand, six hundred sixty-three".