36988993 has 4 divisors (see below), whose sum is σ = 37033920. Its totient is φ = 36944068.

The previous prime is 36988981. The next prime is 36988999. The reversal of 36988993 is 39988963.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36988993 - 2⁵ = 36988961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36988999) 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, 21205 + ... + 22882.

It is an arithmetic number, because the mean of its divisors is an integer number (9258480).

Almost surely, 2^36988993 is an apocalyptic number.

It is an amenable number.

36988993 is a deficient number, since it is larger than the sum of its proper divisors (44927).

36988993 is an equidigital number, since it uses as much as digits as its factorization.

36988993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44926.

The product of its digits is 2519424, while the sum is 55.

The square root of 36988993 is about 6081.8576931724. The cubic root of 36988993 is about 333.1891388551.

The spelling of 36988993 in words is "thirty-six million, nine hundred eighty-eight thousand, nine hundred ninety-three".