2698749 has 6 divisors (see below), whose sum is σ = 3898206. Its totient is φ = 1799160.

The previous prime is 2698739. The next prime is 2698753. The reversal of 2698749 is 9478962.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1988100 + 710649 = 1410^2 + 843^2 .

It is not a de Polignac number, because 2698749 - 2¹³ = 2690557 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6⁶ + 9⁴ + 8⁷ + 7⁵ + 4 + 9⁶ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2698739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149922 + ... + 149939.

It is an arithmetic number, because the mean of its divisors is an integer number (649701).

2^2698749 is an apocalyptic number.

It is an amenable number.

2698749 is a deficient number, since it is larger than the sum of its proper divisors (1199457).

2698749 is a wasteful number, since it uses less digits than its factorization.

2698749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299867 (or 299864 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2698749 is about 1642.7869612339. The cubic root of 2698749 is about 139.2261556578.

The spelling of 2698749 in words is "two million, six hundred ninety-eight thousand, seven hundred forty-nine".