673165731 has 16 divisors (see below), whose sum is σ = 1049633024. Its totient is φ = 375719904.

The previous prime is 673165729. The next prime is 673165733. The reversal of 673165731 is 137561376.

673165731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (673165729) and next prime (673165733).

It is not a de Polignac number, because 673165731 - 2¹ = 673165729 is a prime.

It is a super-2 number, since 2×673165731² = 906304202785528722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 673165731.

It is not an unprimeable number, because it can be changed into a prime (673165733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371836 + ... + 373641.

It is an arithmetic number, because the mean of its divisors is an integer number (65602064).

Almost surely, 2^673165731 is an apocalyptic number.

673165731 is a deficient number, since it is larger than the sum of its proper divisors (376467293).

673165731 is a wasteful number, since it uses less digits than its factorization.

673165731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745530.

The product of its digits is 79380, while the sum is 39.

The square root of 673165731 is about 25945.4375758051. The cubic root of 673165731 is about 876.4100176559.

The spelling of 673165731 in words is "six hundred seventy-three million, one hundred sixty-five thousand, seven hundred thirty-one".