84470256 has 160 divisors (see below), whose sum is σ = 265608000. Its totient is φ = 25698816.

The previous prime is 84470231. The next prime is 84470273. The reversal of 84470256 is 65207448.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 84470256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 949060 + ... + 949148.

It is an arithmetic number, because the mean of its divisors is an integer number (1660050).

Almost surely, 2^84470256 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 84470256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132804000).

84470256 is an abundant number, since it is smaller than the sum of its proper divisors (181137744).

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

84470256 is a wasteful number, since it uses less digits than its factorization.

84470256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 84470256 is about 9190.7701527130. The cubic root of 84470256 is about 438.7676536107.

The spelling of 84470256 in words is "eighty-four million, four hundred seventy thousand, two hundred fifty-six".