36168391 has 8 divisors (see below), whose sum is σ = 41375744. Its totient is φ = 30971160.

The previous prime is 36168389. The next prime is 36168421. The reversal of 36168391 is 19386163.

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 36168391 - 2¹ = 36168389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36168391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36168311) 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, 8146 + ... + 11776.

It is an arithmetic number, because the mean of its divisors is an integer number (5171968).

Almost surely, 2^36168391 is an apocalyptic number.

36168391 is a deficient number, since it is larger than the sum of its proper divisors (5207353).

36168391 is a wasteful number, since it uses less digits than its factorization.

36168391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061.

The product of its digits is 23328, while the sum is 37.

The square root of 36168391 is about 6014.0162121497. The cubic root of 36168391 is about 330.7067528082.

The spelling of 36168391 in words is "thirty-six million, one hundred sixty-eight thousand, three hundred ninety-one".