673081886 has 8 divisors (see below), whose sum is σ = 1015263720. Its totient is φ = 334660648.

The previous prime is 673081883. The next prime is 673081891. The reversal of 673081886 is 688180376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×673081886² = 906078450522633992, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 673081886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673081883) 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, 939701 + ... + 940416.

It is an arithmetic number, because the mean of its divisors is an integer number (126907965).

Almost surely, 2^673081886 is an apocalyptic number.

673081886 is a deficient number, since it is larger than the sum of its proper divisors (342181834).

673081886 is a wasteful number, since it uses less digits than its factorization.

673081886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880298.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 673081886 is about 25943.8217308091. The cubic root of 673081886 is about 876.3736295643.

The spelling of 673081886 in words is "six hundred seventy-three million, eighty-one thousand, eight hundred eighty-six".