84957678 has 24 divisors (see below), whose sum is σ = 198235128. Its totient is φ = 26140752.

The previous prime is 84957667. The next prime is 84957707. The reversal of 84957678 is 87675948.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181300 + ... + 181767.

It is an arithmetic number, because the mean of its divisors is an integer number (8259797).

Almost surely, 2^84957678 is an apocalyptic number.

84957678 is an abundant number, since it is smaller than the sum of its proper divisors (113277450).

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

84957678 is a wasteful number, since it uses less digits than its factorization.

84957678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363088 (or 363085 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 84957678 is about 9217.2489388103. The cubic root of 84957678 is about 439.6099815226.

The spelling of 84957678 in words is "eighty-four million, nine hundred fifty-seven thousand, six hundred seventy-eight".