2001073837 has 4 divisors (see below), whose sum is σ = 2286941536. Its totient is φ = 1715206140.

The previous prime is 2001073783. The next prime is 2001073847. The reversal of 2001073837 is 7383701002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7383701002 = 2 ⋅3691850501.

It is a cyclic number.

It is not a de Polignac number, because 2001073837 - 2⁷ = 2001073709 is a prime.

It is a super-2 number, since 2×2001073837² = 8008593002251805138, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001073799 and 2001073808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001073847) 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, 142933839 + ... + 142933852.

It is an arithmetic number, because the mean of its divisors is an integer number (571735384).

Almost surely, 2^2001073837 is an apocalyptic number.

It is an amenable number.

2001073837 is a deficient number, since it is larger than the sum of its proper divisors (285867699).

2001073837 is an equidigital number, since it uses as much as digits as its factorization.

2001073837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285867698.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2001073837 is about 44733.3638015296. The cubic root of 2001073837 is about 1260.1465011901.

Adding to 2001073837 its reverse (7383701002), we get a palindrome (9384774839).

The spelling of 2001073837 in words is "two billion, one million, seventy-three thousand, eight hundred thirty-seven".