2698729 has 4 divisors (see below), whose sum is σ = 2944080. Its totient is φ = 2453380.

The previous prime is 2698727. The next prime is 2698739. The reversal of 2698729 is 9278962.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2698729 - 2¹ = 2698727 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 9 + 8⁷ + 7⁵ + 2¹⁹ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2698721) 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, 122659 + ... + 122680.

It is an arithmetic number, because the mean of its divisors is an integer number (736020).

2^2698729 is an apocalyptic number.

It is an amenable number.

2698729 is a deficient number, since it is larger than the sum of its proper divisors (245351).

2698729 is a wasteful number, since it uses less digits than its factorization.

2698729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245350.

The product of its digits is 108864, while the sum is 43.

The square root of 2698729 is about 1642.7808740060. The cubic root of 2698729 is about 139.2258117293.

It can be divided in two parts, 269 and 8729, that added together give a palindrome (8998).

The spelling of 2698729 in words is "two million, six hundred ninety-eight thousand, seven hundred twenty-nine".