36773681 has 4 divisors (see below), whose sum is σ = 42027072. Its totient is φ = 31520292.

The previous prime is 36773651. The next prime is 36773717. The reversal of 36773681 is 18637763.

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.

It is a cyclic number.

It is not a de Polignac number, because 36773681 - 2⁶ = 36773617 is a prime.

It is a super-2 number, since 2×36773681² = 2704607228579522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36773621) 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, 2626685 + ... + 2626698.

It is an arithmetic number, because the mean of its divisors is an integer number (10506768).

Almost surely, 2^36773681 is an apocalyptic number.

It is an amenable number.

36773681 is a deficient number, since it is larger than the sum of its proper divisors (5253391).

36773681 is an equidigital number, since it uses as much as digits as its factorization.

36773681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253390.

The product of its digits is 127008, while the sum is 41.

The square root of 36773681 is about 6064.1306879057. The cubic root of 36773681 is about 332.5413851666.

The spelling of 36773681 in words is "thirty-six million, seven hundred seventy-three thousand, six hundred eighty-one".