2689748 has 12 divisors (see below), whose sum is σ = 4739700. Its totient is φ = 1335552.

The previous prime is 2689747. The next prime is 2689783. The reversal of 2689748 is 8479862.

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 2598544 = 302^2 + 1612^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2689699 and 2689708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661 + ... + 2852.

It is an arithmetic number, because the mean of its divisors is an integer number (394975).

2^2689748 is an apocalyptic number.

It is an amenable number.

2689748 is a deficient number, since it is larger than the sum of its proper divisors (2049952).

2689748 is a wasteful number, since it uses less digits than its factorization.

2689748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666 (or 4664 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 2689748 is about 1640.0451213305. The cubic root of 2689748 is about 139.0711986226.

The spelling of 2689748 in words is "two million, six hundred eighty-nine thousand, seven hundred forty-eight".