673864974 has 16 divisors (see below), whose sum is σ = 1497477840. Its totient is φ = 224621640.

The previous prime is 673864951. The next prime is 673865033. The reversal of 673864974 is 479468376.

It is a happy number.

673864974 is a `hidden beast` number, since 6 + 73 + 86 + 497 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 12478981 = 673864974 / (6 + 7 + 3 + 8 + 6 + 4 + 9 + 7 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 673864974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6239437 + ... + 6239544.

It is an arithmetic number, because the mean of its divisors is an integer number (93592365).

Almost surely, 2^673864974 is an apocalyptic number.

673864974 is an abundant number, since it is smaller than the sum of its proper divisors (823612866).

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

673864974 is a wasteful number, since it uses less digits than its factorization.

673864974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12478992 (or 12478986 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 673864974 is about 25958.9093376436. The cubic root of 673864974 is about 876.7133661858.

The spelling of 673864974 in words is "six hundred seventy-three million, eight hundred sixty-four thousand, nine hundred seventy-four".