673435731 has 8 divisors (see below), whose sum is σ = 910214800. Its totient is φ = 442806912.

The previous prime is 673435717. The next prime is 673435757. The reversal of 673435731 is 137534376.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 673435731 - 2¹⁷ = 673304659 is a prime.

It is a super-2 number, since 2×673435731² = 907031367575008722, 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 673435731.

It is not an unprimeable number, because it can be changed into a prime (673433731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1537306 + ... + 1537743.

It is an arithmetic number, because the mean of its divisors is an integer number (113776850).

Almost surely, 2^673435731 is an apocalyptic number.

673435731 is a deficient number, since it is larger than the sum of its proper divisors (236779069).

673435731 is a wasteful number, since it uses less digits than its factorization.

673435731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075125.

The product of its digits is 158760, while the sum is 39.

The square root of 673435731 is about 25950.6402811183. The cubic root of 673435731 is about 876.5271750731.

The spelling of 673435731 in words is "six hundred seventy-three million, four hundred thirty-five thousand, seven hundred thirty-one".