36781249 has 8 divisors (see below), whose sum is σ = 37638720. Its totient is φ = 35931696.

The previous prime is 36781243. The next prime is 36781259. The reversal of 36781249 is 94218763.

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

It is a cyclic number.

It is not a de Polignac number, because 36781249 - 2²³ = 28392641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36781243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7987 + ... + 11719.

It is an arithmetic number, because the mean of its divisors is an integer number (4704840).

Almost surely, 2^36781249 is an apocalyptic number.

It is an amenable number.

36781249 is a deficient number, since it is larger than the sum of its proper divisors (857471).

36781249 is a wasteful number, since it uses less digits than its factorization.

36781249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959.

The product of its digits is 72576, while the sum is 40.

The square root of 36781249 is about 6064.7546529105. The cubic root of 36781249 is about 332.5641958699.

The spelling of 36781249 in words is "thirty-six million, seven hundred eighty-one thousand, two hundred forty-nine".