36689643 has 6 divisors (see below), whose sum is σ = 52996164. Its totient is φ = 24459756.

The previous prime is 36689641. The next prime is 36689651. The reversal of 36689643 is 34698663.

It is not a de Polignac number, because 36689643 - 2¹ = 36689641 is a prime.

It is a super-2 number, since 2×36689643² = 2692259806934898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36689641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2038305 + ... + 2038322.

It is an arithmetic number, because the mean of its divisors is an integer number (8832694).

Almost surely, 2^36689643 is an apocalyptic number.

36689643 is a deficient number, since it is larger than the sum of its proper divisors (16306521).

36689643 is a wasteful number, since it uses less digits than its factorization.

36689643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076633 (or 4076630 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 36689643 is about 6057.1976193616. The cubic root of 36689643 is about 332.2878757053.

It can be divided in two parts, 366 and 89643, that added together give a palindrome (90009).

The spelling of 36689643 in words is "thirty-six million, six hundred eighty-nine thousand, six hundred forty-three".