2938921 has 8 divisors (see below), whose sum is σ = 3082464. Its totient is φ = 2798880.

The previous prime is 2938861. The next prime is 2938927. The reversal of 2938921 is 1298392.

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 2938921 - 2⁹ = 2938409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2938927) 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, 930 + ... + 2596.

It is an arithmetic number, because the mean of its divisors is an integer number (385308).

2^2938921 is an apocalyptic number.

It is an amenable number.

2938921 is a deficient number, since it is larger than the sum of its proper divisors (143543).

2938921 is a wasteful number, since it uses less digits than its factorization.

2938921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751.

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

The square root of 2938921 is about 1714.3281482843. The cubic root of 2938921 is about 143.2394475606.

The spelling of 2938921 in words is "two million, nine hundred thirty-eight thousand, nine hundred twenty-one".