36390811 has 4 divisors (see below), whose sum is σ = 36766072. Its totient is φ = 36015552.

The previous prime is 36390799. The next prime is 36390841. The reversal of 36390811 is 11809363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11809363 = 733 ⋅16111.

It is a cyclic number.

It is not a de Polignac number, because 36390811 - 2⁵ = 36390779 is a prime.

It is a super-2 number, since 2×36390811² = 2648582250475442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36390841) 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, 187485 + ... + 187678.

It is an arithmetic number, because the mean of its divisors is an integer number (9191518).

Almost surely, 2^36390811 is an apocalyptic number.

36390811 is a deficient number, since it is larger than the sum of its proper divisors (375261).

36390811 is an equidigital number, since it uses as much as digits as its factorization.

36390811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375260.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 36390811 is about 6032.4796725725. The cubic root of 36390811 is about 331.3832692189.

The spelling of 36390811 in words is "thirty-six million, three hundred ninety thousand, eight hundred eleven".