673215237 has 12 divisors (see below), whose sum is σ = 972651264. Its totient is φ = 448704360.

The previous prime is 673215233. The next prime is 673215247. The reversal of 673215237 is 732512376.

It is not a de Polignac number, because 673215237 - 2² = 673215233 is a prime.

Its product of digits (52920) is a multiple of the sum of its prime factors (17640).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673215233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58662 + ... + 69192.

It is an arithmetic number, because the mean of its divisors is an integer number (81054272).

Almost surely, 2^673215237 is an apocalyptic number.

It is an amenable number.

673215237 is a deficient number, since it is larger than the sum of its proper divisors (299436027).

673215237 is a wasteful number, since it uses less digits than its factorization.

673215237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17640 (or 17637 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 673215237 is about 25946.3915988332. The cubic root of 673215237 is about 876.4315014643.

The spelling of 673215237 in words is "six hundred seventy-three million, two hundred fifteen thousand, two hundred thirty-seven".