36700681 has 4 divisors (see below), whose sum is σ = 37217664. Its totient is φ = 36183700.

The previous prime is 36700667. The next prime is 36700693. The reversal of 36700681 is 18600763.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18600763 = 1873 ⋅9931.

It is a cyclic number.

It is not a de Polignac number, because 36700681 - 2⁵ = 36700649 is a prime.

It is a super-2 number, since 2×36700681² = 2693879971727522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36700481) 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, 258385 + ... + 258526.

It is an arithmetic number, because the mean of its divisors is an integer number (9304416).

Almost surely, 2^36700681 is an apocalyptic number.

It is an amenable number.

36700681 is a deficient number, since it is larger than the sum of its proper divisors (516983).

36700681 is an equidigital number, since it uses as much as digits as its factorization.

36700681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516982.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 36700681 is about 6058.1086982655. The cubic root of 36700681 is about 332.3211950612.

The spelling of 36700681 in words is "thirty-six million, seven hundred thousand, six hundred eighty-one".