84257894 has 16 divisors (see below), whose sum is σ = 152044800. Its totient is φ = 34209864.

The previous prime is 84257891. The next prime is 84257909. The reversal of 84257894 is 49875248.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84257891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158114 + ... + 158645.

It is an arithmetic number, because the mean of its divisors is an integer number (9502800).

Almost surely, 2^84257894 is an apocalyptic number.

84257894 is a deficient number, since it is larger than the sum of its proper divisors (67786906).

84257894 is a wasteful number, since it uses less digits than its factorization.

84257894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316787.

The product of its digits is 645120, while the sum is 47.

The square root of 84257894 is about 9179.2098788512. The cubic root of 84257894 is about 438.3996512143.

The spelling of 84257894 in words is "eighty-four million, two hundred fifty-seven thousand, eight hundred ninety-four".