2880921 has 8 divisors (see below), whose sum is σ = 3913920. Its totient is φ = 1884272.

The previous prime is 2880907. The next prime is 2880949. The reversal of 2880921 is 1290882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2880921 - 2¹¹ = 2878873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2880901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8901 + ... + 9218.

It is an arithmetic number, because the mean of its divisors is an integer number (489240).

2^2880921 is an apocalyptic number.

It is an amenable number.

2880921 is a deficient number, since it is larger than the sum of its proper divisors (1032999).

2880921 is a wasteful number, since it uses less digits than its factorization.

2880921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18175.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2880921 is about 1697.3276053844. The cubic root of 2880921 is about 142.2908967611.

The spelling of 2880921 in words is "two million, eight hundred eighty thousand, nine hundred twenty-one".