82921874 has 8 divisors (see below), whose sum is σ = 142151808. Its totient is φ = 35537940.

The previous prime is 82921873. The next prime is 82921913. The reversal of 82921874 is 47812928.

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 (82921873) 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, 2961482 + ... + 2961509.

It is an arithmetic number, because the mean of its divisors is an integer number (17768976).

Almost surely, 2^82921874 is an apocalyptic number.

82921874 is a deficient number, since it is larger than the sum of its proper divisors (59229934).

82921874 is a wasteful number, since it uses less digits than its factorization.

82921874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923000.

The product of its digits is 64512, while the sum is 41.

The square root of 82921874 is about 9106.1448483977. The cubic root of 82921874 is about 436.0701602718.

The spelling of 82921874 in words is "eighty-two million, nine hundred twenty-one thousand, eight hundred seventy-four".