201712673 has 4 divisors (see below), whose sum is σ = 206004480. Its totient is φ = 197420868.

The previous prime is 201712649. The next prime is 201712697. The reversal of 201712673 is 376217102.

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 an interprime number because it is at equal distance from previous prime (201712649) and next prime (201712697).

It is a de Polignac number, because none of the positive numbers 2^k-201712673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201712073) 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, 2145833 + ... + 2145926.

It is an arithmetic number, because the mean of its divisors is an integer number (51501120).

Almost surely, 2^201712673 is an apocalyptic number.

It is an amenable number.

201712673 is a deficient number, since it is larger than the sum of its proper divisors (4291807).

201712673 is an equidigital number, since it uses as much as digits as its factorization.

201712673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291806.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 201712673 is about 14202.5586779284. The cubic root of 201712673 is about 586.4681006647.

Adding to 201712673 its reverse (376217102), we get a palindrome (577929775).

The spelling of 201712673 in words is "two hundred one million, seven hundred twelve thousand, six hundred seventy-three".