80843904 has 48 divisors (see below), whose sum is σ = 232640070. Its totient is φ = 26947584.

The previous prime is 80843897. The next prime is 80843911. The reversal of 80843904 is 40934808.

It is an interprime number because it is at equal distance from previous prime (80843897) and next prime (80843911).

It can be written as a sum of positive squares in only one way, i.e., 80138304 + 705600 = 8952^2 + 840^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×80843904² = 13071473627922432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33937 + ... + 36240.

Almost surely, 2^80843904 is an apocalyptic number.

It is an amenable number.

80843904 is an abundant number, since it is smaller than the sum of its proper divisors (151796166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80843904 is a wasteful number, since it uses less digits than its factorization.

80843904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70197 (or 70182 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 80843904 is about 8991.3238179925. The cubic root of 80843904 is about 432.3967548448.

The spelling of 80843904 in words is "eighty million, eight hundred forty-three thousand, nine hundred four".