673382978 has 16 divisors (see below), whose sum is σ = 1016928000. Its totient is φ = 334414752.

The previous prime is 673382939. The next prime is 673382999. The reversal of 673382978 is 879283376.

It is a happy 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, 208238 + ... + 211446.

It is an arithmetic number, because the mean of its divisors is an integer number (63558000).

Almost surely, 2^673382978 is an apocalyptic number.

673382978 is a deficient number, since it is larger than the sum of its proper divisors (343545022).

673382978 is a wasteful number, since it uses less digits than its factorization.

673382978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889.

The product of its digits is 3048192, while the sum is 53.

The square root of 673382978 is about 25949.6238508384. The cubic root of 673382978 is about 876.5042871451.

The spelling of 673382978 in words is "six hundred seventy-three million, three hundred eighty-two thousand, nine hundred seventy-eight".