673700737 has 4 divisors (see below), whose sum is σ = 689368240. Its totient is φ = 658033236.

The previous prime is 673700723. The next prime is 673700743. The reversal of 673700737 is 737007376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673700737 is a prime.

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 673700737.

It is not an unprimeable number, because it can be changed into a prime (673700707) 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, 7833687 + ... + 7833772.

It is an arithmetic number, because the mean of its divisors is an integer number (172342060).

Almost surely, 2^673700737 is an apocalyptic number.

It is an amenable number.

673700737 is a deficient number, since it is larger than the sum of its proper divisors (15667503).

673700737 is a wasteful number, since it uses less digits than its factorization.

673700737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15667502.

The product of its (nonzero) digits is 129654, while the sum is 40.

The square root of 673700737 is about 25955.7457415502. The cubic root of 673700737 is about 876.6421350648.

The spelling of 673700737 in words is "six hundred seventy-three million, seven hundred thousand, seven hundred thirty-seven".