3000921 has 24 divisors (see below), whose sum is σ = 5030592. Its totient is φ = 1557600.

The previous prime is 3000919. The next prime is 3000929. The reversal of 3000921 is 1290003.

It is not a de Polignac number, because 3000921 - 2¹ = 3000919 is a prime.

3000921 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3000921.

It is not an unprimeable number, because it can be changed into a prime (3000929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1951 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (209608).

Almost surely, 2^3000921 is an apocalyptic number.

It is an amenable number.

3000921 is a deficient number, since it is larger than the sum of its proper divisors (2029671).

3000921 is a wasteful number, since it uses less digits than its factorization.

3000921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 3000921 is about 1732.3166569655. The cubic root of 3000921 is about 144.2397145413.

Adding to 3000921 its reverse (1290003), we get a palindrome (4290924).

The spelling of 3000921 in words is "three million, nine hundred twenty-one", and thus it is an aban number.