1768869 has 6 divisors (see below), whose sum is σ = 2555046. Its totient is φ = 1179240.

The previous prime is 1768853. The next prime is 1768873. The reversal of 1768869 is 9688671.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1292769 + 476100 = 1137^2 + 690^2 .

It is not a de Polignac number, because 1768869 - 2⁴ = 1768853 is a prime.

It is a super-2 number, since 2×1768869² = 6257795078322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768849) 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, 98262 + ... + 98279.

It is an arithmetic number, because the mean of its divisors is an integer number (425841).

2^1768869 is an apocalyptic number.

It is an amenable number.

1768869 is a deficient number, since it is larger than the sum of its proper divisors (786177).

1768869 is a wasteful number, since it uses less digits than its factorization.

1768869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196547 (or 196544 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 1768869 is about 1329.9883458136. The cubic root of 1768869 is about 120.9386798555.

It can be divided in two parts, 176 and 8869, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 1768869 in words is "one million, seven hundred sixty-eight thousand, eight hundred sixty-nine".