36713681 has 16 divisors (see below), whose sum is σ = 41731200. Its totient is φ = 32110848.

The previous prime is 36713647. The next prime is 36713689. The reversal of 36713681 is 18631763.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36713681 is a prime.

It is a super-2 number, since 2×36713681² = 2695788745139522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36713689) 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, 11225 + ... + 14121.

It is an arithmetic number, because the mean of its divisors is an integer number (2608200).

Almost surely, 2^36713681 is an apocalyptic number.

It is an amenable number.

36713681 is a deficient number, since it is larger than the sum of its proper divisors (5017519).

36713681 is a wasteful number, since it uses less digits than its factorization.

36713681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968.

The product of its digits is 18144, while the sum is 35.

The square root of 36713681 is about 6059.1815453904. The cubic root of 36713681 is about 332.3604283526.

The spelling of 36713681 in words is "thirty-six million, seven hundred thirteen thousand, six hundred eighty-one".