36698993 has 4 divisors (see below), whose sum is σ = 36715380. Its totient is φ = 36682608.

The previous prime is 36698989. The next prime is 36699023. The reversal of 36698993 is 39989663.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13965169 + 22733824 = 3737^2 + 4768^2 .

It is a cyclic number.

It is not a de Polignac number, because 36698993 - 2² = 36698989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36698093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4178 + ... + 9531.

It is an arithmetic number, because the mean of its divisors is an integer number (9178845).

Almost surely, 2^36698993 is an apocalyptic number.

It is an amenable number.

36698993 is a deficient number, since it is larger than the sum of its proper divisors (16387).

36698993 is a wasteful number, since it uses less digits than its factorization.

36698993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16386.

The product of its digits is 1889568, while the sum is 53.

The square root of 36698993 is about 6057.9693792557. The cubic root of 36698993 is about 332.3161000896.

The spelling of 36698993 in words is "thirty-six million, six hundred ninety-eight thousand, nine hundred ninety-three".