36680891 has 4 divisors (see below), whose sum is σ = 39502512. Its totient is φ = 33859272.

The previous prime is 36680879. The next prime is 36680893. The reversal of 36680891 is 19808663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19808663 = 7 ⋅2829809.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36680891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36680893) 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, 1410791 + ... + 1410816.

It is an arithmetic number, because the mean of its divisors is an integer number (9875628).

Almost surely, 2^36680891 is an apocalyptic number.

36680891 is a deficient number, since it is larger than the sum of its proper divisors (2821621).

36680891 is a wasteful number, since it uses less digits than its factorization.

36680891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821620.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 36680891 is about 6056.4751299745. The cubic root of 36680891 is about 332.2614521288.

The spelling of 36680891 in words is "thirty-six million, six hundred eighty thousand, eight hundred ninety-one".