2721862 has 32 divisors (see below), whose sum is σ = 4967424. Its totient is φ = 1101600.

The previous prime is 2721841. The next prime is 2721863. The reversal of 2721862 is 2681272.

It is a self number, because there is not a number n which added to its sum of digits gives 2721862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8713 + ... + 9019.

It is an arithmetic number, because the mean of its divisors is an integer number (155232).

2^2721862 is an apocalyptic number.

2721862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2721862 is a deficient number, since it is larger than the sum of its proper divisors (2245562).

2721862 is a wasteful number, since it uses less digits than its factorization.

2721862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364.

The product of its digits is 2688, while the sum is 28.

The square root of 2721862 is about 1649.8066553387. The cubic root of 2721862 is about 139.6224863409.

The spelling of 2721862 in words is "two million, seven hundred twenty-one thousand, eight hundred sixty-two".