80499663 has 10 divisors (see below), whose sum is σ = 120252704. Its totient is φ = 53666388.

The previous prime is 80499649. The next prime is 80499677. The reversal of 80499663 is 36699408.

It is an interprime number because it is at equal distance from previous prime (80499649) and next prime (80499677).

It is not a de Polignac number, because 80499663 - 2¹⁶ = 80434127 is a prime.

It is a super-2 number, since 2×80499663² = 12960391486227138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80499623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 496831 + ... + 496992.

Almost surely, 2^80499663 is an apocalyptic number.

80499663 is a deficient number, since it is larger than the sum of its proper divisors (39753041).

80499663 is an equidigital number, since it uses as much as digits as its factorization.

80499663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993835 (or 993826 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 80499663 is about 8972.1604421678. The cubic root of 80499663 is about 431.7821528949.

The spelling of 80499663 in words is "eighty million, four hundred ninety-nine thousand, six hundred sixty-three".