36819661 has 8 divisors (see below), whose sum is σ = 38632448. Its totient is φ = 35046000.

The previous prime is 36819641. The next prime is 36819691. The reversal of 36819661 is 16691863.

36819661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36819661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36819631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7845 + ... + 11626.

It is an arithmetic number, because the mean of its divisors is an integer number (4829056).

Almost surely, 2^36819661 is an apocalyptic number.

36819661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36819661 is a deficient number, since it is larger than the sum of its proper divisors (1812787).

36819661 is a wasteful number, since it uses less digits than its factorization.

36819661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19563.

The product of its digits is 46656, while the sum is 40.

The square root of 36819661 is about 6067.9206487890. The cubic root of 36819661 is about 332.6799252327.

The spelling of 36819661 in words is "thirty-six million, eight hundred nineteen thousand, six hundred sixty-one".