36753993 has 14 divisors (see below), whose sum is σ = 55106874. Its totient is φ = 24502176.

The previous prime is 36753973. The next prime is 36754009. The reversal of 36753993 is 39935763.

It can be written as a sum of positive squares in only one way, i.e., 28869129 + 7884864 = 5373^2 + 2808^2 .

It is not a de Polignac number, because 36753993 - 2⁶ = 36753929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36753943) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 24480 + ... + 25937.

Almost surely, 2^36753993 is an apocalyptic number.

It is an amenable number.

36753993 is a deficient number, since it is larger than the sum of its proper divisors (18352881).

36753993 is an frugal number, since it uses more digits than its factorization.

36753993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50435 (or 50420 counting only the distinct ones).

The product of its digits is 459270, while the sum is 45.

The square root of 36753993 is about 6062.5071546350. The cubic root of 36753993 is about 332.4820289155.

The spelling of 36753993 in words is "thirty-six million, seven hundred fifty-three thousand, nine hundred ninety-three".