84881880 has 48 divisors (see below), whose sum is σ = 275867280. Its totient is φ = 22635072.

The previous prime is 84881857. The next prime is 84881903. The reversal of 84881880 is 8818848.

It is an interprime number because it is at equal distance from previous prime (84881857) and next prime (84881903).

It is a Smith number, since the sum of its digits (45) 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 (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117532 + ... + 118251.

It is an arithmetic number, because the mean of its divisors is an integer number (5747235).

Almost surely, 2^84881880 is an apocalyptic number.

It is an amenable number.

84881880 is an abundant number, since it is smaller than the sum of its proper divisors (190985400).

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

84881880 is a wasteful number, since it uses less digits than its factorization.

84881880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235800 (or 235793 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 45.

The square root of 84881880 is about 9213.1362738212. The cubic root of 84881880 is about 439.4792047533.

It can be divided in two parts, 848 and 81880, that added together give a palindrome (82728).

The spelling of 84881880 in words is "eighty-four million, eight hundred eighty-one thousand, eight hundred eighty".