80887646 has 16 divisors (see below), whose sum is σ = 141282144. Its totient is φ = 34011744.

The previous prime is 80887627. The next prime is 80887657. The reversal of 80887646 is 64678808.

It is a happy number.

It is a super-2 number, since 2×80887646² = 13085622550842632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80887646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53765 + ... + 55248.

It is an arithmetic number, because the mean of its divisors is an integer number (8830134).

Almost surely, 2^80887646 is an apocalyptic number.

80887646 is a deficient number, since it is larger than the sum of its proper divisors (60394498).

80887646 is a wasteful number, since it uses less digits than its factorization.

80887646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109075.

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 80887646 is about 8993.7559450988. The cubic root of 80887646 is about 432.4747260449.

The spelling of 80887646 in words is "eighty million, eight hundred eighty-seven thousand, six hundred forty-six".