36661343 has 4 divisors (see below), whose sum is σ = 36881040. Its totient is φ = 36441648.

The previous prime is 36661321. The next prime is 36661357. The reversal of 36661343 is 34316663.

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 36661343 - 2¹⁰ = 36660319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36661543) 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, 109598 + ... + 109931.

It is an arithmetic number, because the mean of its divisors is an integer number (9220260).

Almost surely, 2^36661343 is an apocalyptic number.

36661343 is a deficient number, since it is larger than the sum of its proper divisors (219697).

36661343 is a wasteful number, since it uses less digits than its factorization.

36661343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219696.

The product of its digits is 23328, while the sum is 32.

The square root of 36661343 is about 6054.8611049305. The cubic root of 36661343 is about 332.2024186574.

The spelling of 36661343 in words is "thirty-six million, six hundred sixty-one thousand, three hundred forty-three".