36000399 has 4 divisors (see below), whose sum is σ = 48000536. Its totient is φ = 24000264.

The previous prime is 36000389. The next prime is 36000401. The reversal of 36000399 is 99300063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99300063 = 3 ⋅33100021.

It is not a de Polignac number, because 36000399 - 2⁸ = 36000143 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 (36000319) 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, 6000064 + ... + 6000069.

It is an arithmetic number, because the mean of its divisors is an integer number (12000134).

Almost surely, 2^36000399 is an apocalyptic number.

36000399 is a deficient number, since it is larger than the sum of its proper divisors (12000137).

36000399 is a wasteful number, since it uses less digits than its factorization.

36000399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12000136.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 36000399 is about 6000.0332499079. The cubic root of 36000399 is about 330.1939447636.

The spelling of 36000399 in words is "thirty-six million, three hundred ninety-nine", and thus it is an aban number.