36808431 has 8 divisors (see below), whose sum is σ = 53539584. Its totient is φ = 22308120.

The previous prime is 36808423. The next prime is 36808463. The reversal of 36808431 is 13480863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36808431 - 2³ = 36808423 is a prime.

It is a super-2 number, since 2×36808431² = 2709721185363522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1115407 = 36808431 / (3 + 6 + 8 + 0 + 8 + 4 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 36808392 and 36808401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36808411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557671 + ... + 557736.

It is an arithmetic number, because the mean of its divisors is an integer number (6692448).

Almost surely, 2^36808431 is an apocalyptic number.

36808431 is a deficient number, since it is larger than the sum of its proper divisors (16731153).

36808431 is a wasteful number, since it uses less digits than its factorization.

36808431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115421.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 36808431 is about 6066.9952200410. The cubic root of 36808431 is about 332.6460993242.

The spelling of 36808431 in words is "thirty-six million, eight hundred eight thousand, four hundred thirty-one".