36436973 has 4 divisors (see below), whose sum is σ = 36500700. Its totient is φ = 36373248.

The previous prime is 36436969. The next prime is 36436993. The reversal of 36436973 is 37963463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37963463 = 19 ⋅1998077.

It can be written as a sum of positive squares in 2 ways, for example, as 26081449 + 10355524 = 5107^2 + 3218^2 .

It is a cyclic number.

It is not a de Polignac number, because 36436973 - 2² = 36436969 is a prime.

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 36436973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36436903) 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, 30998 + ... + 32151.

It is an arithmetic number, because the mean of its divisors is an integer number (9125175).

Almost surely, 2^36436973 is an apocalyptic number.

It is an amenable number.

36436973 is a deficient number, since it is larger than the sum of its proper divisors (63727).

36436973 is an equidigital number, since it uses as much as digits as its factorization.

36436973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63726.

The product of its digits is 244944, while the sum is 41.

The square root of 36436973 is about 6036.3045814472. The cubic root of 36436973 is about 331.5233306827.

The spelling of 36436973 in words is "thirty-six million, four hundred thirty-six thousand, nine hundred seventy-three".