201687020 has 12 divisors (see below), whose sum is σ = 423542784. Its totient is φ = 80674800.

The previous prime is 201687019. The next prime is 201687029. The reversal of 201687020 is 20786102.

It is not an unprimeable number, because it can be changed into a prime (201687029) 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, 5042156 + ... + 5042195.

It is an arithmetic number, because the mean of its divisors is an integer number (35295232).

Almost surely, 2^201687020 is an apocalyptic number.

201687020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201687020 is an abundant number, since it is smaller than the sum of its proper divisors (221855764).

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

201687020 is a wasteful number, since it uses less digits than its factorization.

201687020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084360 (or 10084358 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 201687020 is about 14201.6555372956. The cubic root of 201687020 is about 586.4432380655.

The spelling of 201687020 in words is "two hundred one million, six hundred eighty-seven thousand, twenty".