36818765 has 4 divisors (see below), whose sum is σ = 44182524. Its totient is φ = 29455008.

The previous prime is 36818759. The next prime is 36818767. The reversal of 36818765 is 56781863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56781863 = 31 ⋅1831673.

It can be written as a sum of positive squares in 2 ways, for example, as 18139081 + 18679684 = 4259^2 + 4322^2 .

It is a cyclic number.

It is not a de Polignac number, because 36818765 - 2¹² = 36814669 is a prime.

It is a super-2 number, since 2×36818765² = 2711242912250450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36818767) 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, 3681872 + ... + 3681881.

It is an arithmetic number, because the mean of its divisors is an integer number (11045631).

Almost surely, 2^36818765 is an apocalyptic number.

It is an amenable number.

36818765 is a deficient number, since it is larger than the sum of its proper divisors (7363759).

36818765 is an equidigital number, since it uses as much as digits as its factorization.

36818765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363758.

The product of its digits is 241920, while the sum is 44.

The square root of 36818765 is about 6067.8468174469. The cubic root of 36818765 is about 332.6772266416.

The spelling of 36818765 in words is "thirty-six million, eight hundred eighteen thousand, seven hundred sixty-five".