36608381 has 4 divisors (see below), whose sum is σ = 37124064. Its totient is φ = 36092700.

The previous prime is 36608371. The next prime is 36608389. The reversal of 36608381 is 18380663.

It is a happy number.

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: 18380663 = 7 ⋅2625809.

It is a cyclic number.

It is not a de Polignac number, because 36608381 - 2²² = 32414077 is a prime.

It is a super-2 number, since 2×36608381² = 2680347118882322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36608389) 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, 257735 + ... + 257876.

It is an arithmetic number, because the mean of its divisors is an integer number (9281016).

Almost surely, 2^36608381 is an apocalyptic number.

It is an amenable number.

36608381 is a deficient number, since it is larger than the sum of its proper divisors (515683).

36608381 is an equidigital number, since it uses as much as digits as its factorization.

36608381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515682.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 36608381 is about 6050.4860135364. The cubic root of 36608381 is about 332.0423719327.

The spelling of 36608381 in words is "thirty-six million, six hundred eight thousand, three hundred eighty-one".