2921086 has 24 divisors (see below), whose sum is σ = 5228496. Its totient is φ = 1219680.

The previous prime is 2921063. The next prime is 2921089. The reversal of 2921086 is 6801292.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3655 + ... + 4381.

It is an arithmetic number, because the mean of its divisors is an integer number (217854).

2^2921086 is an apocalyptic number.

2921086 is a deficient number, since it is larger than the sum of its proper divisors (2307410).

2921086 is a wasteful number, since it uses less digits than its factorization.

2921086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2921086 is about 1709.1184862379. The cubic root of 2921086 is about 142.9491073564.

It can be divided in two parts, 292 and 1086, that added together give a triangular number (1378 = T₅₂).

The spelling of 2921086 in words is "two million, nine hundred twenty-one thousand, eighty-six".