853021982 has 4 divisors (see below), whose sum is σ = 1279532976. Its totient is φ = 426510990.

The previous prime is 853021973. The next prime is 853021993. The reversal of 853021982 is 289120358.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213255494 + ... + 213255497.

It is an arithmetic number, because the mean of its divisors is an integer number (319883244).

Almost surely, 2^853021982 is an apocalyptic number.

853021982 is a deficient number, since it is larger than the sum of its proper divisors (426510994).

853021982 is a wasteful number, since it uses less digits than its factorization.

853021982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426510993.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 853021982 is about 29206.5400552684. The cubic root of 853021982 is about 948.3895084693.

The spelling of 853021982 in words is "eight hundred fifty-three million, twenty-one thousand, nine hundred eighty-two".