5840921 has 4 divisors (see below), whose sum is σ = 5865600. Its totient is φ = 5816244.

The previous prime is 5840909. The next prime is 5840951. The reversal of 5840921 is 1290485.

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 a de Polignac number, because none of the positive numbers 2^k-5840921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5840951) 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, 11981 + ... + 12458.

It is an arithmetic number, because the mean of its divisors is an integer number (1466400).

Almost surely, 2^5840921 is an apocalyptic number.

It is an amenable number.

5840921 is a deficient number, since it is larger than the sum of its proper divisors (24679).

5840921 is a wasteful number, since it uses less digits than its factorization.

5840921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24678.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 5840921 is about 2416.7997434624. The cubic root of 5840921 is about 180.0917330777.

The spelling of 5840921 in words is "five million, eight hundred forty thousand, nine hundred twenty-one".