2721966 has 16 divisors (see below), whose sum is σ = 5862864. Its totient is φ = 837504.

The previous prime is 2721947. The next prime is 2722001. The reversal of 2721966 is 6691272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17371 + ... + 17526.

It is an arithmetic number, because the mean of its divisors is an integer number (366429).

2^2721966 is an apocalyptic number.

2721966 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2721966 is an abundant number, since it is smaller than the sum of its proper divisors (3140898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2721966 is a wasteful number, since it uses less digits than its factorization.

2721966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34915.

The product of its digits is 9072, while the sum is 33.

The square root of 2721966 is about 1649.8381738825. The cubic root of 2721966 is about 139.6242646032.

The spelling of 2721966 in words is "two million, seven hundred twenty-one thousand, nine hundred sixty-six".