2933921 has 8 divisors (see below), whose sum is σ = 3015144. Its totient is φ = 2853760.

The previous prime is 2933897. The next prime is 2933927. The reversal of 2933921 is 1293392.

It can be written as a sum of positive squares in 4 ways, for example, as 1852321 + 1081600 = 1361^2 + 1040^2 .

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 2933921 - 2¹⁸ = 2671777 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2933927) 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, 10301 + ... + 10581.

It is an arithmetic number, because the mean of its divisors is an integer number (376893).

2^2933921 is an apocalyptic number.

It is an amenable number.

2933921 is a deficient number, since it is larger than the sum of its proper divisors (81223).

2933921 is a wasteful number, since it uses less digits than its factorization.

2933921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its digits is 2916, while the sum is 29.

The square root of 2933921 is about 1712.8692302683. The cubic root of 2933921 is about 143.1581701373.

The spelling of 2933921 in words is "two million, nine hundred thirty-three thousand, nine hundred twenty-one".