36261661 has 8 divisors (see below), whose sum is σ = 37603584. Its totient is φ = 34930560.

The previous prime is 36261649. The next prime is 36261679. The reversal of 36261661 is 16616263.

36261661 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 not a de Polignac number, because 36261661 - 2¹⁵ = 36228893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36261601) 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, 4461 + ... + 9613.

It is an arithmetic number, because the mean of its divisors is an integer number (4700448).

Almost surely, 2^36261661 is an apocalyptic number.

36261661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36261661 is a deficient number, since it is larger than the sum of its proper divisors (1341923).

36261661 is a wasteful number, since it uses less digits than its factorization.

36261661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411.

The product of its digits is 7776, while the sum is 31.

The square root of 36261661 is about 6021.7656048704. The cubic root of 36261661 is about 330.9907811344.

The spelling of 36261661 in words is "thirty-six million, two hundred sixty-one thousand, six hundred sixty-one".