36689963 has 4 divisors (see below), whose sum is σ = 36767040. Its totient is φ = 36612888.

The previous prime is 36689953. The next prime is 36689971. The reversal of 36689963 is 36998663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36689963 - 2¹² = 36685867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36689923) 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, 37820 + ... + 38777.

It is an arithmetic number, because the mean of its divisors is an integer number (9191760).

Almost surely, 2^36689963 is an apocalyptic number.

36689963 is a deficient number, since it is larger than the sum of its proper divisors (77077).

36689963 is an equidigital number, since it uses as much as digits as its factorization.

36689963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77076.

The product of its digits is 1259712, while the sum is 50.

The square root of 36689963 is about 6057.2240341595. The cubic root of 36689963 is about 332.2888417527.

It can be divided in two parts, 3668 and 9963, that added together give a palindrome (13631).

The spelling of 36689963 in words is "thirty-six million, six hundred eighty-nine thousand, nine hundred sixty-three".