2689769 has 4 divisors (see below), whose sum is σ = 2696580. Its totient is φ = 2682960.

The previous prime is 2689747. The next prime is 2689783. The reversal of 2689769 is 9679862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10000 + 2679769 = 100^2 + 1637^2 .

It is a cyclic number.

It is not a de Polignac number, because 2689769 - 2¹² = 2685673 is a prime.

It is a super-2 number, since 2×2689769² = 14469714546722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 6² + 8⁷ + 9⁵ + 7 + 6² + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2689369) 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, 2774 + ... + 3615.

It is an arithmetic number, because the mean of its divisors is an integer number (674145).

2^2689769 is an apocalyptic number.

It is an amenable number.

2689769 is a deficient number, since it is larger than the sum of its proper divisors (6811).

2689769 is an equidigital number, since it uses as much as digits as its factorization.

2689769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810.

The product of its digits is 326592, while the sum is 47.

The square root of 2689769 is about 1640.0515235809. The cubic root of 2689769 is about 139.0715605509.

The spelling of 2689769 in words is "two million, six hundred eighty-nine thousand, seven hundred sixty-nine".