673997078 has 12 divisors (see below), whose sum is σ = 1030439508. Its totient is φ = 330637320.

The previous prime is 673997063. The next prime is 673997081. The reversal of 673997078 is 870799376.

It is a super-2 number, since 2×673997078² = 908544122305076168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54368 + ... + 65603.

It is an arithmetic number, because the mean of its divisors is an integer number (85869959).

Almost surely, 2^673997078 is an apocalyptic number.

673997078 is a deficient number, since it is larger than the sum of its proper divisors (356442430).

673997078 is a wasteful number, since it uses less digits than its factorization.

673997078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120079 (or 120026 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 56.

The square root of 673997078 is about 25961.4536958160. The cubic root of 673997078 is about 876.7706525263.

The spelling of 673997078 in words is "six hundred seventy-three million, nine hundred ninety-seven thousand, seventy-eight".