83820874 has 8 divisors (see below), whose sum is σ = 126691488. Its totient is φ = 41590380.

The previous prime is 83820871. The next prime is 83820907. The reversal of 83820874 is 47802838.

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

It is not an unprimeable number, because it can be changed into a prime (83820871) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 159702 + ... + 160225.

It is an arithmetic number, because the mean of its divisors is an integer number (15836436).

Almost surely, 2^83820874 is an apocalyptic number.

83820874 is a deficient number, since it is larger than the sum of its proper divisors (42870614).

83820874 is a wasteful number, since it uses less digits than its factorization.

83820874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320060.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 83820874 is about 9155.3740502505. The cubic root of 83820874 is about 437.6403885788.

It can be divided in two parts, 838 and 20874, that added together give a palindrome (21712).

The spelling of 83820874 in words is "eighty-three million, eight hundred twenty thousand, eight hundred seventy-four".