8380749 has 8 divisors (see below), whose sum is σ = 12033952. Its totient is φ = 5157360.

The previous prime is 8380741. The next prime is 8380751. The reversal of 8380749 is 9470838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8380749 - 2³ = 8380741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 214891 = 8380749 / (8 + 3 + 8 + 0 + 7 + 4 + 9).

It is a Duffinian number.

8380749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8380741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107407 + ... + 107484.

It is an arithmetic number, because the mean of its divisors is an integer number (1504244).

Almost surely, 2^8380749 is an apocalyptic number.

It is an amenable number.

8380749 is a deficient number, since it is larger than the sum of its proper divisors (3653203).

8380749 is a wasteful number, since it uses less digits than its factorization.

8380749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214907.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 8380749 is about 2894.9523312138. The cubic root of 8380749 is about 203.1238617372.

The spelling of 8380749 in words is "eight million, three hundred eighty thousand, seven hundred forty-nine".