201971672 has 32 divisors (see below), whose sum is σ = 455577600. Its totient is φ = 82003104.

The previous prime is 201971663. The next prime is 201971677. The reversal of 201971672 is 276179102.

201971672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201971677) 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, 93848 + ... + 95975.

It is an arithmetic number, because the mean of its divisors is an integer number (14236800).

Almost surely, 2^201971672 is an apocalyptic number.

It is an amenable number.

201971672 is an abundant number, since it is smaller than the sum of its proper divisors (253605928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201971672 is a wasteful number, since it uses less digits than its factorization.

201971672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189855 (or 189851 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 201971672 is about 14211.6737930477. The cubic root of 201971672 is about 586.7190015869.

The spelling of 201971672 in words is "two hundred one million, nine hundred seventy-one thousand, six hundred seventy-two".