2328981 has 4 divisors (see below), whose sum is σ = 3105312. Its totient is φ = 1552652.

The previous prime is 2328973. The next prime is 2329027. The reversal of 2328981 is 1898232.

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 a cyclic number.

It is not a de Polignac number, because 2328981 - 2³ = 2328973 is a prime.

It is a super-2 number, since 2×2328981² = 10848304996722, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2328941) 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, 388161 + ... + 388166.

It is an arithmetic number, because the mean of its divisors is an integer number (776328).

2^2328981 is an apocalyptic number.

It is an amenable number.

2328981 is a deficient number, since it is larger than the sum of its proper divisors (776331).

2328981 is an equidigital number, since it uses as much as digits as its factorization.

2328981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776330.

The product of its digits is 6912, while the sum is 33.

The square root of 2328981 is about 1526.0999311972. The cubic root of 2328981 is about 132.5527213952.

The spelling of 2328981 in words is "two million, three hundred twenty-eight thousand, nine hundred eighty-one".