84774 has 16 divisors (see below), whose sum is σ = 172800. Its totient is φ = 27720.

The previous prime is 84761. The next prime is 84787. The reversal of 84774 is 47748.

It is an interprime number because it is at equal distance from previous prime (84761) and next prime (84787).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 84774.

It is an unprimeable number.

84774 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327 + ... + 525.

It is an arithmetic number, because the mean of its divisors is an integer number (10800).

2⁸⁴⁷⁷⁴ is an apocalyptic number.

84774 is an abundant number, since it is smaller than the sum of its proper divisors (88026).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86400).

84774 is a wasteful number, since it uses less digits than its factorization.

84774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its digits is 6272, while the sum is 30.

The square root of 84774 is about 291.1597499655. The cubic root of 84774 is about 43.9292941535.

It can be divided in two parts, 84 and 774, that added together give a palindrome (858).

The spelling of 84774 in words is "eighty-four thousand, seven hundred seventy-four".