36391641 has 32 divisors (see below), whose sum is σ = 58423680. Its totient is φ = 19852800.

The previous prime is 36391639. The next prime is 36391657. The reversal of 36391641 is 14619363.

36391641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 36391641 - 2¹ = 36391639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (36391601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16555 + ... + 18623.

It is an arithmetic number, because the mean of its divisors is an integer number (1825740).

Almost surely, 2^36391641 is an apocalyptic number.

It is an amenable number.

36391641 is a deficient number, since it is larger than the sum of its proper divisors (22032039).

36391641 is a wasteful number, since it uses less digits than its factorization.

36391641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137.

The product of its digits is 11664, while the sum is 33.

The square root of 36391641 is about 6032.5484664443. The cubic root of 36391641 is about 331.3857885914.

The spelling of 36391641 in words is "thirty-six million, three hundred ninety-one thousand, six hundred forty-one".