84840880 has 40 divisors (see below), whose sum is σ = 208861632. Its totient is φ = 31939584.

The previous prime is 84840869. The next prime is 84840881. The reversal of 84840880 is 8804848.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (84840881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29832 + ... + 32551.

Almost surely, 2^84840880 is an apocalyptic number.

84840880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84840880 is an abundant number, since it is smaller than the sum of its proper divisors (124020752).

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

84840880 is a wasteful number, since it uses less digits than its factorization.

84840880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62413 (or 62407 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 84840880 is about 9210.9109212933. The cubic root of 84840880 is about 439.4084336640.

The spelling of 84840880 in words is "eighty-four million, eight hundred forty thousand, eight hundred eighty".