2921983 has 4 divisors (see below), whose sum is σ = 2925448. Its totient is φ = 2918520.

The previous prime is 2921981. The next prime is 2921987. The reversal of 2921983 is 3891292.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2921983 - 2¹ = 2921981 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921981) 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, 448 + ... + 2458.

It is an arithmetic number, because the mean of its divisors is an integer number (731362).

2^2921983 is an apocalyptic number.

2921983 is a deficient number, since it is larger than the sum of its proper divisors (3465).

2921983 is a wasteful number, since it uses less digits than its factorization.

2921983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464.

The product of its digits is 7776, while the sum is 34.

The square root of 2921983 is about 1709.3808820740. The cubic root of 2921983 is about 142.9637380140.

The spelling of 2921983 in words is "two million, nine hundred twenty-one thousand, nine hundred eighty-three".