936398813 has 32 divisors (see below), whose sum is σ = 1120272384. Its totient is φ = 766184832.

The previous prime is 936398809. The next prime is 936398819. The reversal of 936398813 is 318893639.

It is not a de Polignac number, because 936398813 - 2² = 936398809 is a prime.

It is a house number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (936398819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3050006 + ... + 3050312.

It is an arithmetic number, because the mean of its divisors is an integer number (35008512).

Almost surely, 2^936398813 is an apocalyptic number.

It is an amenable number.

936398813 is a deficient number, since it is larger than the sum of its proper divisors (183873571).

936398813 is a wasteful number, since it uses less digits than its factorization.

936398813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561.

The product of its digits is 839808, while the sum is 50.

The square root of 936398813 is about 30600.6341927745. The cubic root of 936398813 is about 978.3335600384. Note that the first 3 decimals are identical.

The spelling of 936398813 in words is "nine hundred thirty-six million, three hundred ninety-eight thousand, eight hundred thirteen".