80638995 has 32 divisors (see below), whose sum is σ = 134291520. Its totient is φ = 41269760.

The previous prime is 80638927. The next prime is 80638997. The reversal of 80638995 is 59983608.

It is not a de Polignac number, because 80638995 - 2⁷ = 80638867 is a prime.

It is a super-2 number, since 2×80638995² = 13005295029220050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80638997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85225 + ... + 86165.

It is an arithmetic number, because the mean of its divisors is an integer number (4196610).

Almost surely, 2^80638995 is an apocalyptic number.

80638995 is a deficient number, since it is larger than the sum of its proper divisors (53652525).

80638995 is a wasteful number, since it uses less digits than its factorization.

80638995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 80638995 is about 8979.9217702606. The cubic root of 80638995 is about 432.0311245150.

The spelling of 80638995 in words is "eighty million, six hundred thirty-eight thousand, nine hundred ninety-five".