36610881 has 4 divisors (see below), whose sum is σ = 48814512. Its totient is φ = 24407252.

The previous prime is 36610879. The next prime is 36610897. The reversal of 36610881 is 18801663.

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: 18801663 = 3 ⋅6267221.

It is a cyclic number.

It is not a de Polignac number, because 36610881 - 2¹ = 36610879 is a prime.

It is a super-2 number, since 2×36610881² = 2680713215192322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36610801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6101811 + ... + 6101816.

It is an arithmetic number, because the mean of its divisors is an integer number (12203628).

Almost surely, 2^36610881 is an apocalyptic number.

It is an amenable number.

36610881 is a deficient number, since it is larger than the sum of its proper divisors (12203631).

36610881 is a wasteful number, since it uses less digits than its factorization.

36610881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12203630.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 36610881 is about 6050.6926049833. The cubic root of 36610881 is about 332.0499301931.

The spelling of 36610881 in words is "thirty-six million, six hundred ten thousand, eight hundred eighty-one".