39716249 has 4 divisors (see below), whose sum is σ = 40684980. Its totient is φ = 38747520.

The previous prime is 39716231. The next prime is 39716291. The reversal of 39716249 is 94261793.

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 15460624 + 24255625 = 3932^2 + 4925^2 .

It is a cyclic number.

It is not a de Polignac number, because 39716249 - 2¹⁶ = 39650713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 968689 = 39716249 / (3 + 9 + 7 + 1 + 6 + 2 + 4 + 9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39716749) 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, 484304 + ... + 484385.

It is an arithmetic number, because the mean of its divisors is an integer number (10171245).

Almost surely, 2^39716249 is an apocalyptic number.

It is an amenable number.

39716249 is a deficient number, since it is larger than the sum of its proper divisors (968731).

39716249 is an equidigital number, since it uses as much as digits as its factorization.

39716249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968730.

The product of its digits is 81648, while the sum is 41.

The square root of 39716249 is about 6302.0829096419. The cubic root of 39716249 is about 341.1845905933.

The spelling of 39716249 in words is "thirty-nine million, seven hundred sixteen thousand, two hundred forty-nine".