36309473 has 4 divisors (see below), whose sum is σ = 36321540. Its totient is φ = 36297408.

The previous prime is 36309451. The next prime is 36309503. The reversal of 36309473 is 37490363.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37490363 = 19 ⋅1973177.

It can be written as a sum of positive squares in 2 ways, for example, as 10837264 + 25472209 = 3292^2 + 5047^2 .

It is a cyclic number.

It is not a de Polignac number, because 36309473 - 2¹⁶ = 36243937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36309443) 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, 2573 + ... + 8901.

It is an arithmetic number, because the mean of its divisors is an integer number (9080385).

Almost surely, 2^36309473 is an apocalyptic number.

It is an amenable number.

36309473 is a deficient number, since it is larger than the sum of its proper divisors (12067).

36309473 is an equidigital number, since it uses as much as digits as its factorization.

36309473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12066.

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 36309473 is about 6025.7342291210. The cubic root of 36309473 is about 331.1361907351.

The spelling of 36309473 in words is "thirty-six million, three hundred nine thousand, four hundred seventy-three".