2031969 has 4 divisors (see below), whose sum is σ = 2709296. Its totient is φ = 1354644.

The previous prime is 2031961. The next prime is 2031977. The reversal of 2031969 is 9691302.

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.

It is an interprime number because it is at equal distance from previous prime (2031961) and next prime (2031977).

It is not a de Polignac number, because 2031969 - 2³ = 2031961 is a prime.

It is a super-2 number, since 2×2031969² = 8257796033922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

2031969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2031961) 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, 338659 + ... + 338664.

It is an arithmetic number, because the mean of its divisors is an integer number (677324).

2^2031969 is an apocalyptic number.

It is an amenable number.

2031969 is a deficient number, since it is larger than the sum of its proper divisors (677327).

2031969 is an equidigital number, since it uses as much as digits as its factorization.

2031969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677326.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 2031969 is about 1425.4715009428. The cubic root of 2031969 is about 126.6598665171.

The spelling of 2031969 in words is "two million, thirty-one thousand, nine hundred sixty-nine".