2721693 has 16 divisors (see below), whose sum is σ = 4114880. Its totient is φ = 1586304.

The previous prime is 2721671. The next prime is 2721701. The reversal of 2721693 is 3961272.

It is not a de Polignac number, because 2721693 - 2⁸ = 2721437 is a prime.

It is a super-2 number, since 2×2721693² = 14815225572498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2721693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721193) 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, 1096 + ... + 2577.

It is an arithmetic number, because the mean of its divisors is an integer number (257180).

2^2721693 is an apocalyptic number.

It is an amenable number.

2721693 is a deficient number, since it is larger than the sum of its proper divisors (1393187).

2721693 is a wasteful number, since it uses less digits than its factorization.

2721693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708.

The product of its digits is 4536, while the sum is 30.

The square root of 2721693 is about 1649.7554364208. The cubic root of 2721693 is about 139.6195965681.

The spelling of 2721693 in words is "two million, seven hundred twenty-one thousand, six hundred ninety-three".