673290733 has 4 divisors (see below), whose sum is σ = 684328348. Its totient is φ = 662253120.

The previous prime is 673290731. The next prime is 673290749. The reversal of 673290733 is 337092376.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153313924 + 519976809 = 12382^2 + 22803^2 .

It is a cyclic number.

It is not a de Polignac number, because 673290733 - 2¹ = 673290731 is a prime.

It is a super-2 number, since 2×673290733² = 906640822287354578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673290731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5518716 + ... + 5518837.

It is an arithmetic number, because the mean of its divisors is an integer number (171082087).

Almost surely, 2^673290733 is an apocalyptic number.

It is an amenable number.

673290733 is a deficient number, since it is larger than the sum of its proper divisors (11037615).

673290733 is a wasteful number, since it uses less digits than its factorization.

673290733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11037614.

The product of its (nonzero) digits is 142884, while the sum is 40.

The square root of 673290733 is about 25947.8464038926. The cubic root of 673290733 is about 876.4642619624.

The spelling of 673290733 in words is "six hundred seventy-three million, two hundred ninety thousand, seven hundred thirty-three".