36806817 has 4 divisors (see below), whose sum is σ = 49075760. Its totient is φ = 24537876.

The previous prime is 36806801. The next prime is 36806843. The reversal of 36806817 is 71860863.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71860863 = 3 ⋅23953621.

It is not a de Polignac number, because 36806817 - 2⁴ = 36806801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36806617) 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, 6134467 + ... + 6134472.

It is an arithmetic number, because the mean of its divisors is an integer number (12268940).

Almost surely, 2^36806817 is an apocalyptic number.

It is an amenable number.

36806817 is a deficient number, since it is larger than the sum of its proper divisors (12268943).

36806817 is a wasteful number, since it uses less digits than its factorization.

36806817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12268942.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 36806817 is about 6066.8622038085. The cubic root of 36806817 is about 332.6412372257.

The spelling of 36806817 in words is "thirty-six million, eight hundred six thousand, eight hundred seventeen".