673783537 has 8 divisors (see below), whose sum is σ = 773948736. Its totient is φ = 574595952.

The previous prime is 673783511. The next prime is 673783549. The reversal of 673783537 is 735387376.

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

It is not a de Polignac number, because 673783537 - 2¹¹ = 673781489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673783507) 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, 242923 + ... + 245680.

It is an arithmetic number, because the mean of its divisors is an integer number (96743592).

Almost surely, 2^673783537 is an apocalyptic number.

It is an amenable number.

673783537 is a deficient number, since it is larger than the sum of its proper divisors (100165199).

673783537 is a wasteful number, since it uses less digits than its factorization.

673783537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488807.

The product of its digits is 2222640, while the sum is 49.

The square root of 673783537 is about 25957.3407151041. The cubic root of 673783537 is about 876.6780476450.

The spelling of 673783537 in words is "six hundred seventy-three million, seven hundred eighty-three thousand, five hundred thirty-seven".