851672798 has 4 divisors (see below), whose sum is σ = 1277509200. Its totient is φ = 425836398.

The previous prime is 851672753. The next prime is 851672849. The reversal of 851672798 is 897276158.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212918198 + ... + 212918201.

It is an arithmetic number, because the mean of its divisors is an integer number (319377300).

Almost surely, 2^851672798 is an apocalyptic number.

851672798 is a deficient number, since it is larger than the sum of its proper divisors (425836402).

851672798 is a wasteful number, since it uses less digits than its factorization.

851672798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425836401.

The product of its digits is 1693440, while the sum is 53.

The square root of 851672798 is about 29183.4336225195. The cubic root of 851672798 is about 947.8892372090.

The spelling of 851672798 in words is "eight hundred fifty-one million, six hundred seventy-two thousand, seven hundred ninety-eight".