80949663 has 6 divisors (see below), whose sum is σ = 116927304. Its totient is φ = 53966436.

The previous prime is 80949629. The next prime is 80949677. The reversal of 80949663 is 36694908.

It is not a de Polignac number, because 80949663 - 2⁹ = 80949151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80949163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4497195 + ... + 4497212.

It is an arithmetic number, because the mean of its divisors is an integer number (19487884).

Almost surely, 2^80949663 is an apocalyptic number.

80949663 is a deficient number, since it is larger than the sum of its proper divisors (35977641).

80949663 is a wasteful number, since it uses less digits than its factorization.

80949663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8994413 (or 8994410 counting only the distinct ones).

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

The square root of 80949663 is about 8997.2030653976. The cubic root of 80949663 is about 432.5852247213.

The spelling of 80949663 in words is "eighty million, nine hundred forty-nine thousand, six hundred sixty-three".