84890858 has 16 divisors (see below), whose sum is σ = 140322336. Its totient is φ = 38268720.

The previous prime is 84890851. The next prime is 84890863. The reversal of 84890858 is 85809848.

It is not an unprimeable number, because it can be changed into a prime (84890851) 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, 36848 + ... + 39083.

It is an arithmetic number, because the mean of its divisors is an integer number (8770146).

Almost surely, 2^84890858 is an apocalyptic number.

84890858 is a deficient number, since it is larger than the sum of its proper divisors (55431478).

84890858 is a wasteful number, since it uses less digits than its factorization.

84890858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75989.

The product of its (nonzero) digits is 737280, while the sum is 50.

The square root of 84890858 is about 9213.6235000134. The cubic root of 84890858 is about 439.4946988540.

The spelling of 84890858 in words is "eighty-four million, eight hundred ninety thousand, eight hundred fifty-eight".