83990854 has 8 divisors (see below), whose sum is σ = 127504440. Its totient is φ = 41489376.

The previous prime is 83990843. The next prime is 83990857. The reversal of 83990854 is 45809938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83990857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252819 + ... + 253150.

It is an arithmetic number, because the mean of its divisors is an integer number (15938055).

Almost surely, 2^83990854 is an apocalyptic number.

83990854 is a deficient number, since it is larger than the sum of its proper divisors (43513586).

83990854 is a wasteful number, since it uses less digits than its factorization.

83990854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506054.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 83990854 is about 9164.6524211232. The cubic root of 83990854 is about 437.9360185380.

The spelling of 83990854 in words is "eighty-three million, nine hundred ninety thousand, eight hundred fifty-four".