36689409 has 16 divisors (see below), whose sum is σ = 55382400. Its totient is φ = 23997168.

The previous prime is 36689407. The next prime is 36689413. The reversal of 36689409 is 90498663.

It is not a de Polignac number, because 36689409 - 2¹ = 36689407 is a prime.

It is a super-2 number, since 2×36689409² = 2692225465538562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36689407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11389 + ... + 14250.

It is an arithmetic number, because the mean of its divisors is an integer number (3461400).

Almost surely, 2^36689409 is an apocalyptic number.

It is an amenable number.

36689409 is a deficient number, since it is larger than the sum of its proper divisors (18692991).

36689409 is a wasteful number, since it uses less digits than its factorization.

36689409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25701 (or 25695 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 36689409 is about 6057.1783034677. The cubic root of 36689409 is about 332.2871692795.

The spelling of 36689409 in words is "thirty-six million, six hundred eighty-nine thousand, four hundred nine".