84000881 has 16 divisors (see below), whose sum is σ = 91002240. Its totient is φ = 77293440.

The previous prime is 84000869. The next prime is 84000911. The reversal of 84000881 is 18800048.

It is not a de Polignac number, because 84000881 - 2⁶ = 84000817 is a prime.

It is a super-2 number, since 2×84000881² = 14112296017552322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84000811) 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, 98051 + ... + 98903.

It is an arithmetic number, because the mean of its divisors is an integer number (5687640).

Almost surely, 2^84000881 is an apocalyptic number.

It is an amenable number.

84000881 is a deficient number, since it is larger than the sum of its proper divisors (7001359).

84000881 is a wasteful number, since it uses less digits than its factorization.

84000881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 84000881 is about 9165.1994522760. The cubic root of 84000881 is about 437.9534450772.

The spelling of 84000881 in words is "eighty-four million, eight hundred eighty-one", and thus it is an aban number.