36399917 has 8 divisors (see below), whose sum is σ = 37069560. Its totient is φ = 35735040.

The previous prime is 36399911. The next prime is 36399919. The reversal of 36399917 is 71999363.

It can be written as a sum of positive squares in 4 ways, for example, as 4748041 + 31651876 = 2179^2 + 5626^2 .

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 36399917 - 2⁸ = 36399661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36399911) 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, 16559 + ... + 18627.

It is an arithmetic number, because the mean of its divisors is an integer number (4633695).

Almost surely, 2^36399917 is an apocalyptic number.

It is an amenable number.

36399917 is a deficient number, since it is larger than the sum of its proper divisors (669643).

36399917 is a wasteful number, since it uses less digits than its factorization.

36399917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383.

The product of its digits is 275562, while the sum is 47.

The square root of 36399917 is about 6033.2343730374. The cubic root of 36399917 is about 331.4109073717.

The spelling of 36399917 in words is "thirty-six million, three hundred ninety-nine thousand, nine hundred seventeen".