201673997 has 8 divisors (see below), whose sum is σ = 231183552. Its totient is φ = 172339200.

The previous prime is 201673993. The next prime is 201674017. The reversal of 201673997 is 799376102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201673997 - 2² = 201673993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201673993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41204 + ... + 45837.

It is an arithmetic number, because the mean of its divisors is an integer number (28897944).

Almost surely, 2^201673997 is an apocalyptic number.

It is an amenable number.

201673997 is a deficient number, since it is larger than the sum of its proper divisors (29509555).

201673997 is an equidigital number, since it uses as much as digits as its factorization.

201673997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87379.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 201673997 is about 14201.1970270115. The cubic root of 201673997 is about 586.4306155136.

The spelling of 201673997 in words is "two hundred one million, six hundred seventy-three thousand, nine hundred ninety-seven".