36728987 has 4 divisors (see below), whose sum is σ = 36742560. Its totient is φ = 36715416.

The previous prime is 36728983. The next prime is 36729013. The reversal of 36728987 is 78982763.

It is a happy number.

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: 78982763 = 1283 ⋅61561.

It is a cyclic number.

It is not a de Polignac number, because 36728987 - 2² = 36728983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36728983) 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, 1187 + ... + 8652.

It is an arithmetic number, because the mean of its divisors is an integer number (9185640).

Almost surely, 2^36728987 is an apocalyptic number.

36728987 is a deficient number, since it is larger than the sum of its proper divisors (13573).

36728987 is an equidigital number, since it uses as much as digits as its factorization.

36728987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13572.

The product of its digits is 1016064, while the sum is 50.

The square root of 36728987 is about 6060.4444556484. Note that the first 4 decimals coincide. The cubic root of 36728987 is about 332.4066091568.

The spelling of 36728987 in words is "thirty-six million, seven hundred twenty-eight thousand, nine hundred eighty-seven".