84915140 has 24 divisors (see below), whose sum is σ = 178991232. Its totient is φ = 33838560.

The previous prime is 84915139. The next prime is 84915163. The reversal of 84915140 is 4151948.

It is a junction number, because it is equal to n+sod(n) for n = 84915097 and 84915106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2414 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (7457968).

Almost surely, 2^84915140 is an apocalyptic number.

It is an amenable number.

84915140 is an abundant number, since it is smaller than the sum of its proper divisors (94076092).

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

84915140 is a wasteful number, since it uses less digits than its factorization.

84915140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15947 (or 15945 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 84915140 is about 9214.9411284066. The cubic root of 84915140 is about 439.5365989014.

It can be divided in two parts, 8491 and 5140, that added together give a palindrome (13631).

The spelling of 84915140 in words is "eighty-four million, nine hundred fifteen thousand, one hundred forty".