84856734 has 80 divisors (see below), whose sum is σ = 200213376. Its totient is φ = 26827200.

The previous prime is 84856727. The next prime is 84856753. The reversal of 84856734 is 43765848.

84856734 is a `hidden beast` number, since 84 + 8 + 567 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 84856734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 306204 + ... + 306480.

Almost surely, 2^84856734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84856734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100106688).

84856734 is an abundant number, since it is smaller than the sum of its proper divisors (115356642).

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

84856734 is a wasteful number, since it uses less digits than its factorization.

84856734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 374 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 84856734 is about 9211.7714908697. The cubic root of 84856734 is about 439.4358023390.

The spelling of 84856734 in words is "eighty-four million, eight hundred fifty-six thousand, seven hundred thirty-four".