36606661 has 16 divisors (see below), whose sum is σ = 47706624. Its totient is φ = 27258624.

The previous prime is 36606659. The next prime is 36606667. The reversal of 36606661 is 16660663.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 36606661 - 2¹ = 36606659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36606667) 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, 10285 + ... + 13378.

It is an arithmetic number, because the mean of its divisors is an integer number (2981664).

Almost surely, 2^36606661 is an apocalyptic number.

It is an amenable number.

36606661 is a deficient number, since it is larger than the sum of its proper divisors (11099963).

36606661 is a wasteful number, since it uses less digits than its factorization.

36606661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23700.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 36606661 is about 6050.3438745248. The cubic root of 36606661 is about 332.0371716497.

The spelling of 36606661 in words is "thirty-six million, six hundred six thousand, six hundred sixty-one".