673321310 has 16 divisors (see below), whose sum is σ = 1212277536. Its totient is φ = 269262048.

The previous prime is 673321309. The next prime is 673321331. The reversal of 673321310 is 13123376.

It is a super-2 number, since 2×673321310² = 906723173000232200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 673321310.

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 7 ways as a sum of consecutive naturals, for example, 65159 + ... + 74781.

It is an arithmetic number, because the mean of its divisors is an integer number (75767346).

Almost surely, 2^673321310 is an apocalyptic number.

673321310 is a deficient number, since it is larger than the sum of its proper divisors (538956226).

673321310 is a wasteful number, since it uses less digits than its factorization.

673321310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16627.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 673321310 is about 25948.4355983169. The cubic root of 673321310 is about 876.4775297533.

Adding to 673321310 its reverse (13123376), we get a palindrome (686444686).

The spelling of 673321310 in words is "six hundred seventy-three million, three hundred twenty-one thousand, three hundred ten".