36481811 has 4 divisors (see below), whose sum is σ = 36685800. Its totient is φ = 36277824.

The previous prime is 36481799. The next prime is 36481831. The reversal of 36481811 is 11818463.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 36481811 - 2⁶ = 36481747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36481831) 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, 101726 + ... + 102083.

It is an arithmetic number, because the mean of its divisors is an integer number (9171450).

Almost surely, 2^36481811 is an apocalyptic number.

36481811 is a deficient number, since it is larger than the sum of its proper divisors (203989).

36481811 is a wasteful number, since it uses less digits than its factorization.

36481811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203988.

The product of its digits is 4608, while the sum is 32.

The square root of 36481811 is about 6040.0174668622. The cubic root of 36481811 is about 331.6592617501.

The spelling of 36481811 in words is "thirty-six million, four hundred eighty-one thousand, eight hundred eleven".