671994822 has 16 divisors (see below), whose sum is σ = 1344430080. Its totient is φ = 223924872.

The previous prime is 671994811. The next prime is 671994833. The reversal of 671994822 is 228499176.

It is an interprime number because it is at equal distance from previous prime (671994811) and next prime (671994833).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3483 + ... + 36825.

It is an arithmetic number, because the mean of its divisors is an integer number (84026880).

Almost surely, 2^671994822 is an apocalyptic number.

671994822 is an abundant number, since it is smaller than the sum of its proper divisors (672435258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671994822 is a wasteful number, since it uses less digits than its factorization.

671994822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36707.

The product of its digits is 435456, while the sum is 48.

The square root of 671994822 is about 25922.8629205958. The cubic root of 671994822 is about 875.9015782545.

The spelling of 671994822 in words is "six hundred seventy-one million, nine hundred ninety-four thousand, eight hundred twenty-two".