673784895 has 16 divisors (see below), whose sum is σ = 1232064000. Its totient is φ = 308015904.

The previous prime is 673784893. The next prime is 673784899. The reversal of 673784895 is 598487376.

It is not a de Polignac number, because 673784895 - 2¹ = 673784893 is a prime.

It is a super-2 number, since 2×673784895² = 907972169460322050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673784893) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3208395 + ... + 3208604.

It is an arithmetic number, because the mean of its divisors is an integer number (77004000).

Almost surely, 2^673784895 is an apocalyptic number.

673784895 is a deficient number, since it is larger than the sum of its proper divisors (558279105).

673784895 is a wasteful number, since it uses less digits than its factorization.

673784895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417014.

The product of its digits is 10160640, while the sum is 57.

The square root of 673784895 is about 25957.3668733945. The cubic root of 673784895 is about 876.6786366215.

The spelling of 673784895 in words is "six hundred seventy-three million, seven hundred eighty-four thousand, eight hundred ninety-five".