36905761 has 4 divisors (see below), whose sum is σ = 37903252. Its totient is φ = 35908272.

The previous prime is 36905753. The next prime is 36905767. The reversal of 36905761 is 16750963.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18792225 + 18113536 = 4335^2 + 4256^2 .

It is a cyclic number.

It is not a de Polignac number, because 36905761 - 2³ = 36905753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 997453 = 36905761 / (3 + 6 + 9 + 0 + 5 + 7 + 6 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36905761.

It is not an unprimeable number, because it can be changed into a prime (36905767) 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, 498690 + ... + 498763.

It is an arithmetic number, because the mean of its divisors is an integer number (9475813).

Almost surely, 2^36905761 is an apocalyptic number.

It is an amenable number.

36905761 is a deficient number, since it is larger than the sum of its proper divisors (997491).

36905761 is an equidigital number, since it uses as much as digits as its factorization.

36905761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997490.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 36905761 is about 6075.0111934053. The cubic root of 36905761 is about 332.9390390021.

The spelling of 36905761 in words is "thirty-six million, nine hundred five thousand, seven hundred sixty-one".