8368749 has 6 divisors (see below), whose sum is σ = 12088206. Its totient is φ = 5579160.

The previous prime is 8368747. The next prime is 8368781. The reversal of 8368749 is 9478638.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7452900 + 915849 = 2730^2 + 957^2 .

It is not a de Polignac number, because 8368749 - 2¹ = 8368747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8368741) 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, 464922 + ... + 464939.

It is an arithmetic number, because the mean of its divisors is an integer number (2014701).

Almost surely, 2^8368749 is an apocalyptic number.

It is an amenable number.

8368749 is a deficient number, since it is larger than the sum of its proper divisors (3719457).

8368749 is a wasteful number, since it uses less digits than its factorization.

8368749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929867 (or 929864 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 8368749 is about 2892.8790157903. The cubic root of 8368749 is about 203.0268675966.

The spelling of 8368749 in words is "eight million, three hundred sixty-eight thousand, seven hundred forty-nine".