84786140 has 48 divisors (see below), whose sum is σ = 195048000. Its totient is φ = 30815232.

The previous prime is 84786131. The next prime is 84786181. The reversal of 84786140 is 4168748.

It is a junction number, because it is equal to n+sod(n) for n = 84786094 and 84786103.

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, 5561 + ... + 14159.

It is an arithmetic number, because the mean of its divisors is an integer number (4063500).

Almost surely, 2^84786140 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 84786140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97524000).

84786140 is an abundant number, since it is smaller than the sum of its proper divisors (110261860).

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

84786140 is a wasteful number, since it uses less digits than its factorization.

84786140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8654 (or 8652 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 84786140 is about 9207.9389659141. The cubic root of 84786140 is about 439.3139100781.

The spelling of 84786140 in words is "eighty-four million, seven hundred eighty-six thousand, one hundred forty".