2731983 has 4 divisors (see below), whose sum is σ = 3642648. Its totient is φ = 1821320.

The previous prime is 2731979. The next prime is 2731987. The reversal of 2731983 is 3891372.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2731979) and next prime (2731987).

It is a cyclic number.

It is not a de Polignac number, because 2731983 - 2² = 2731979 is a prime.

It is a super-2 number, since 2×2731983² = 14927462224578, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731987) 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, 455328 + ... + 455333.

It is an arithmetic number, because the mean of its divisors is an integer number (910662).

2^2731983 is an apocalyptic number.

2731983 is a deficient number, since it is larger than the sum of its proper divisors (910665).

2731983 is an equidigital number, since it uses as much as digits as its factorization.

2731983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910664.

The product of its digits is 9072, while the sum is 33.

The square root of 2731983 is about 1652.8711383529. The cubic root of 2731983 is about 139.7953301851.

The spelling of 2731983 in words is "two million, seven hundred thirty-one thousand, nine hundred eighty-three".