2759906 has 4 divisors (see below), whose sum is σ = 4139862. Its totient is φ = 1379952.

The previous prime is 2759891. The next prime is 2759909. The reversal of 2759906 is 6099572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2325625 + 434281 = 1525^2 + 659^2 .

It is a super-2 number, since 2×2759906² = 15234162257672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2759906.

It is not an unprimeable number, because it can be changed into a prime (2759909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689975 + ... + 689978.

2^2759906 is an apocalyptic number.

2759906 is a deficient number, since it is larger than the sum of its proper divisors (1379956).

2759906 is a wasteful number, since it uses less digits than its factorization.

2759906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379955.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 2759906 is about 1661.2964816673. The cubic root of 2759906 is about 140.2699891968.

The spelling of 2759906 in words is "two million, seven hundred fifty-nine thousand, nine hundred six".