2921285 has 16 divisors (see below), whose sum is σ = 3704832. Its totient is φ = 2208000.

The previous prime is 2921273. The next prime is 2921293. The reversal of 2921285 is 5821292.

It is not a de Polignac number, because 2921285 - 2⁶ = 2921221 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7085 + ... + 7485.

It is an arithmetic number, because the mean of its divisors is an integer number (231552).

2^2921285 is an apocalyptic number.

It is an amenable number.

2921285 is a deficient number, since it is larger than the sum of its proper divisors (783547).

2921285 is a wasteful number, since it uses less digits than its factorization.

2921285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

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

The square root of 2921285 is about 1709.1767023921. The cubic root of 2921285 is about 142.9523534353.

The spelling of 2921285 in words is "two million, nine hundred twenty-one thousand, two hundred eighty-five".