8269749 has 16 divisors (see below), whose sum is σ = 12484800. Its totient is φ = 5408208.

The previous prime is 8269739. The next prime is 8269753. The reversal of 8269749 is 9479628.

It is a happy number.

It is not a de Polignac number, because 8269749 - 2⁸ = 8269493 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

8269749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8269739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1459 + ... + 4320.

It is an arithmetic number, because the mean of its divisors is an integer number (780300).

Almost surely, 2^8269749 is an apocalyptic number.

It is an amenable number.

8269749 is a deficient number, since it is larger than the sum of its proper divisors (4215051).

8269749 is a wasteful number, since it uses less digits than its factorization.

8269749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841 (or 5835 counting only the distinct ones).

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

The square root of 8269749 is about 2875.7171279526. The cubic root of 8269749 is about 202.2231057782.

The spelling of 8269749 in words is "eight million, two hundred sixty-nine thousand, seven hundred forty-nine".