2109887001 has 64 divisors (see below), whose sum is σ = 3340400640. Its totient is φ = 1313832960.

The previous prime is 2109886993. The next prime is 2109887009. The reversal of 2109887001 is 1007889012.

It is an interprime number because it is at equal distance from previous prime (2109886993) and next prime (2109887009).

It is not a de Polignac number, because 2109887001 - 2³ = 2109886993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2109887009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5976841 + ... + 5977193.

It is an arithmetic number, because the mean of its divisors is an integer number (52193760).

Almost surely, 2^2109887001 is an apocalyptic number.

It is an amenable number.

2109887001 is a deficient number, since it is larger than the sum of its proper divisors (1230513639).

2109887001 is a wasteful number, since it uses less digits than its factorization.

2109887001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 2109887001 is about 45933.5062998679. The cubic root of 2109887001 is about 1282.5857156896.

The spelling of 2109887001 in words is "two billion, one hundred nine million, eight hundred eighty-seven thousand, one".