673437197 has 16 divisors (see below), whose sum is σ = 726316800. Its totient is φ = 624119904.

The previous prime is 673437181. The next prime is 673437203. The reversal of 673437197 is 791734376.

It is not a de Polignac number, because 673437197 - 2⁴ = 673437181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673437157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321329 + ... + 323417.

It is an arithmetic number, because the mean of its divisors is an integer number (45394800).

Almost surely, 2^673437197 is an apocalyptic number.

It is an amenable number.

673437197 is a deficient number, since it is larger than the sum of its proper divisors (52879603).

673437197 is an equidigital number, since it uses as much as digits as its factorization.

673437197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2155 counting only the distinct ones).

The product of its digits is 666792, while the sum is 47.

The square root of 673437197 is about 25950.6685270341. The cubic root of 673437197 is about 876.5278111090.

The spelling of 673437197 in words is "six hundred seventy-three million, four hundred thirty-seven thousand, one hundred ninety-seven".