36706661 has 4 divisors (see below), whose sum is σ = 36738924. Its totient is φ = 36674400.

The previous prime is 36706633. The next prime is 36706699. The reversal of 36706661 is 16660763.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23522500 + 13184161 = 4850^2 + 3631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36706661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36706601) 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, 14360 + ... + 16721.

It is an arithmetic number, because the mean of its divisors is an integer number (9184731).

Almost surely, 2^36706661 is an apocalyptic number.

It is an amenable number.

36706661 is a deficient number, since it is larger than the sum of its proper divisors (32263).

36706661 is a wasteful number, since it uses less digits than its factorization.

36706661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32262.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 36706661 is about 6058.6022315382. The cubic root of 36706661 is about 332.3392435257.

The spelling of 36706661 in words is "thirty-six million, seven hundred six thousand, six hundred sixty-one".