2657983 has 4 divisors (see below), whose sum is σ = 2679040. Its totient is φ = 2636928.

The previous prime is 2657951. The next prime is 2657999. The reversal of 2657983 is 3897562.

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

It is a cyclic number.

It is not a de Polignac number, because 2657983 - 2⁵ = 2657951 is a prime.

It is a Duffinian number.

2657983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2657483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10338 + ... + 10591.

It is an arithmetic number, because the mean of its divisors is an integer number (669760).

2^2657983 is an apocalyptic number.

2657983 is a deficient number, since it is larger than the sum of its proper divisors (21057).

2657983 is a wasteful number, since it uses less digits than its factorization.

2657983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21056.

The product of its digits is 90720, while the sum is 40.

The square root of 2657983 is about 1630.3321747423. The cubic root of 2657983 is about 138.5215682329.

It can be divided in two parts, 26579 and 83, that added together give a palindrome (26662).

The spelling of 2657983 in words is "two million, six hundred fifty-seven thousand, nine hundred eighty-three".