673235665 has 8 divisors (see below), whose sum is σ = 808023168. Its totient is φ = 538494960.

The previous prime is 673235663. The next prime is 673235681. The reversal of 673235665 is 566532376.

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

It is not a de Polignac number, because 673235665 - 2¹ = 673235663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673235663) 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, 44530 + ... + 57700.

It is an arithmetic number, because the mean of its divisors is an integer number (101002896).

Almost surely, 2^673235665 is an apocalyptic number.

It is an amenable number.

673235665 is a deficient number, since it is larger than the sum of its proper divisors (134787503).

673235665 is a wasteful number, since it uses less digits than its factorization.

673235665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23399.

The product of its digits is 680400, while the sum is 43.

The square root of 673235665 is about 25946.7852536687. The cubic root of 673235665 is about 876.4403661684.

The spelling of 673235665 in words is "six hundred seventy-three million, two hundred thirty-five thousand, six hundred sixty-five".