36764509 has 4 divisors (see below), whose sum is σ = 36781920. Its totient is φ = 36747100.

The previous prime is 36764503. The next prime is 36764513. The reversal of 36764509 is 90546763.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90546763 = 3923 ⋅23081.

It is a cyclic number.

It is not a de Polignac number, because 36764509 - 2⁵ = 36764477 is a prime.

It is a super-2 number, since 2×36764509² = 2703258244022162, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36764503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5017 + ... + 9934.

It is an arithmetic number, because the mean of its divisors is an integer number (9195480).

Almost surely, 2^36764509 is an apocalyptic number.

It is an amenable number.

36764509 is a deficient number, since it is larger than the sum of its proper divisors (17411).

36764509 is a wasteful number, since it uses less digits than its factorization.

36764509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17410.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 36764509 is about 6063.3743905518. The cubic root of 36764509 is about 332.5137356528.

It can be divided in two parts, 36764 and 509, that added together give a palindrome (37273).

The spelling of 36764509 in words is "thirty-six million, seven hundred sixty-four thousand, five hundred nine".