842853994 has 4 divisors (see below), whose sum is σ = 1264280994. Its totient is φ = 421426996.

The previous prime is 842853983. The next prime is 842854007. The reversal of 842853994 is 499358248.

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

It can be written as a sum of positive squares in only one way, i.e., 591219225 + 251634769 = 24315^2 + 15863^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210713497 + ... + 210713500.

Almost surely, 2^842853994 is an apocalyptic number.

842853994 is a deficient number, since it is larger than the sum of its proper divisors (421427000).

842853994 is a wasteful number, since it uses less digits than its factorization.

842853994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421426999.

The product of its digits is 2488320, while the sum is 52.

The square root of 842853994 is about 29031.9478161559. The cubic root of 842853994 is about 944.6061810033.

The spelling of 842853994 in words is "eight hundred forty-two million, eight hundred fifty-three thousand, nine hundred ninety-four".