36005997 has 4 divisors (see below), whose sum is σ = 48008000. Its totient is φ = 24003996.

The previous prime is 36005953. The next prime is 36006011. The reversal of 36005997 is 79950063.

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 not a de Polignac number, because 36005997 - 2⁷ = 36005869 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 (36005947) 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, 6000997 + ... + 6001002.

It is an arithmetic number, because the mean of its divisors is an integer number (12002000).

Almost surely, 2^36005997 is an apocalyptic number.

It is an amenable number.

36005997 is a deficient number, since it is larger than the sum of its proper divisors (12002003).

36005997 is a wasteful number, since it uses less digits than its factorization.

36005997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12002002.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 36005997 is about 6000.4997291892. The cubic root of 36005997 is about 330.2110587397.

The spelling of 36005997 in words is "thirty-six million, five thousand, nine hundred ninety-seven".