84831880 has 32 divisors (see below), whose sum is σ = 218139840. Its totient is φ = 29085120.

The previous prime is 84831871. The next prime is 84831881. The reversal of 84831880 is 8813848.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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 (84831881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151206 + ... + 151765.

It is an arithmetic number, because the mean of its divisors is an integer number (6816870).

Almost surely, 2^84831880 is an apocalyptic number.

It is an amenable number.

84831880 is an abundant number, since it is smaller than the sum of its proper divisors (133307960).

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

84831880 is a wasteful number, since it uses less digits than its factorization.

84831880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302989 (or 302985 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 84831880 is about 9210.4223573081. The cubic root of 84831880 is about 439.3928954952.

The spelling of 84831880 in words is "eighty-four million, eight hundred thirty-one thousand, eight hundred eighty".