80489895 has 16 divisors (see below), whose sum is σ = 128898432. Its totient is φ = 42889760.

The previous prime is 80489891. The next prime is 80489953. The reversal of 80489895 is 59898408.

It is not a de Polignac number, because 80489895 - 2² = 80489891 is a prime.

It is a super-2 number, since 2×80489895² = 12957246394222050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80489891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25684 + ... + 28646.

It is an arithmetic number, because the mean of its divisors is an integer number (8056152).

Almost surely, 2^80489895 is an apocalyptic number.

80489895 is a deficient number, since it is larger than the sum of its proper divisors (48408537).

80489895 is a wasteful number, since it uses less digits than its factorization.

80489895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782.

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 80489895 is about 8971.6160751561. The cubic root of 80489895 is about 431.7646877342.

The spelling of 80489895 in words is "eighty million, four hundred eighty-nine thousand, eight hundred ninety-five".