673565004 has 96 divisors (see below), whose sum is σ = 2029708800. Its totient is φ = 189172800.

The previous prime is 673564999. The next prime is 673565027. The reversal of 673565004 is 400565376.

It is a super-2 number, since 2×673565004² = 907379629227040032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 673565004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37054 + ... + 52154.

It is an arithmetic number, because the mean of its divisors is an integer number (21142800).

Almost surely, 2^673565004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673565004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014854400).

673565004 is an abundant number, since it is smaller than the sum of its proper divisors (1356143796).

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

673565004 is a wasteful number, since it uses less digits than its factorization.

673565004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180 (or 15172 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 673565004 is about 25953.1309093913. The cubic root of 673565004 is about 876.5832576571.

The spelling of 673565004 in words is "six hundred seventy-three million, five hundred sixty-five thousand, four".