2021687037 has 12 divisors (see below), whose sum is σ = 2920663200. Its totient is φ = 1347584328.

The previous prime is 2021687009. The next prime is 2021687053. The reversal of 2021687037 is 7307861202.

It is not a de Polignac number, because 2021687037 - 2⁶ = 2021686973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021686992 and 2021687010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021685037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65464 + ... + 91262.

It is an arithmetic number, because the mean of its divisors is an integer number (243388600).

Almost surely, 2^2021687037 is an apocalyptic number.

It is an amenable number.

2021687037 is a deficient number, since it is larger than the sum of its proper divisors (898976163).

2021687037 is a wasteful number, since it uses less digits than its factorization.

2021687037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34512 (or 34509 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 2021687037 is about 44963.1742318089. The cubic root of 2021687037 is about 1264.4586803150.

The spelling of 2021687037 in words is "two billion, twenty-one million, six hundred eighty-seven thousand, thirty-seven".