36700661 has 4 divisors (see below), whose sum is σ = 36726924. Its totient is φ = 36674400.

The previous prime is 36700649. The next prime is 36700667. The reversal of 36700661 is 16600763.

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 14554225 + 22146436 = 3815^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 36700661 - 2¹⁸ = 36438517 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 (36700667) 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, 10910 + ... + 13871.

It is an arithmetic number, because the mean of its divisors is an integer number (9181731).

Almost surely, 2^36700661 is an apocalyptic number.

It is an amenable number.

36700661 is a deficient number, since it is larger than the sum of its proper divisors (26263).

36700661 is a wasteful number, since it uses less digits than its factorization.

36700661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26262.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 36700661 is about 6058.1070475851. The cubic root of 36700661 is about 332.3211346951.

The spelling of 36700661 in words is "thirty-six million, seven hundred thousand, six hundred sixty-one".