36801641 has 4 divisors (see below), whose sum is σ = 37699284. Its totient is φ = 35904000.

The previous prime is 36801581. The next prime is 36801647. The reversal of 36801641 is 14610863.

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 8976016 + 27825625 = 2996^2 + 5275^2 .

It is a cyclic number.

It is not a de Polignac number, because 36801641 - 2⁶ = 36801577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36801647) 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, 448760 + ... + 448841.

It is an arithmetic number, because the mean of its divisors is an integer number (9424821).

Almost surely, 2^36801641 is an apocalyptic number.

It is an amenable number.

36801641 is a deficient number, since it is larger than the sum of its proper divisors (897643).

36801641 is an equidigital number, since it uses as much as digits as its factorization.

36801641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897642.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 36801641 is about 6066.4356091530. The cubic root of 36801641 is about 332.6256438121.

The spelling of 36801641 in words is "thirty-six million, eight hundred one thousand, six hundred forty-one".