84642894 has 60 divisors (see below), whose sum is σ = 220648824. Its totient is φ = 24181416.

The previous prime is 84642889. The next prime is 84642907. The reversal of 84642894 is 49824648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2607 + ... + 13269.

Almost surely, 2^84642894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84642894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110324412).

84642894 is an abundant number, since it is smaller than the sum of its proper divisors (136005930).

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

84642894 is a wasteful number, since it uses less digits than its factorization.

84642894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691 (or 10675 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 84642894 is about 9200.1572812643. The cubic root of 84642894 is about 439.0663639828.

The spelling of 84642894 in words is "eighty-four million, six hundred forty-two thousand, eight hundred ninety-four".