36689138 has 4 divisors (see below), whose sum is σ = 55033710. Its totient is φ = 18344568.

The previous prime is 36689131. The next prime is 36689201. The reversal of 36689138 is 83198663.

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

It can be written as a sum of positive squares in only one way, i.e., 28121809 + 8567329 = 5303^2 + 2927^2 .

It is a super-3 number, since 3×36689138³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (36689131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9172283 + ... + 9172286.

Almost surely, 2^36689138 is an apocalyptic number.

36689138 is a deficient number, since it is larger than the sum of its proper divisors (18344572).

36689138 is a wasteful number, since it uses less digits than its factorization.

36689138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18344571.

The product of its digits is 186624, while the sum is 44.

The square root of 36689138 is about 6057.1559332743. The cubic root of 36689138 is about 332.2863511502.

The spelling of 36689138 in words is "thirty-six million, six hundred eighty-nine thousand, one hundred thirty-eight".