2739866 has 8 divisors (see below), whose sum is σ = 4210164. Its totient is φ = 1336480.

The previous prime is 2739859. The next prime is 2739871. The reversal of 2739866 is 6689372.

It can be written as a sum of positive squares in 2 ways, for example, as 2739025 + 841 = 1655^2 + 29^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16625 + ... + 16788.

2^2739866 is an apocalyptic number.

2739866 is a deficient number, since it is larger than the sum of its proper divisors (1470298).

2739866 is a wasteful number, since it uses less digits than its factorization.

2739866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33456.

The product of its digits is 108864, while the sum is 41.

The square root of 2739866 is about 1655.2540590495. The cubic root of 2739866 is about 139.9296585412.

It can be divided in two parts, 27 and 39866, that added together give a palindrome (39893).

The spelling of 2739866 in words is "two million, seven hundred thirty-nine thousand, eight hundred sixty-six".