84785140 has 48 divisors (see below), whose sum is σ = 195410880. Its totient is φ = 30644480.

The previous prime is 84785123. The next prime is 84785159. The reversal of 84785140 is 4158748.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 84785140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38304 + ... + 40456.

It is an arithmetic number, because the mean of its divisors is an integer number (4071060).

Almost surely, 2^84785140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84785140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97705440).

84785140 is an abundant number, since it is smaller than the sum of its proper divisors (110625740).

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

84785140 is a wasteful number, since it uses less digits than its factorization.

84785140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352 (or 2350 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 84785140 is about 9207.8846647859. The cubic root of 84785140 is about 439.3121829262.

The spelling of 84785140 in words is "eighty-four million, seven hundred eighty-five thousand, one hundred forty".