11670813 has 36 divisors (see below), whose sum is σ = 21190624. Its totient is φ = 6058800.

The previous prime is 11670809. The next prime is 11670817. The reversal of 11670813 is 31807611.

11670813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11670809) and next prime (11670817).

It is not a de Polignac number, because 11670813 - 2² = 11670809 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11670817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6858 + ... + 8388.

Almost surely, 2^11670813 is an apocalyptic number.

It is an amenable number.

11670813 is a deficient number, since it is larger than the sum of its proper divisors (9519811).

11670813 is a wasteful number, since it uses less digits than its factorization.

11670813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 11670813 is about 3416.2571624513. The cubic root of 11670813 is about 226.8299359531.

The spelling of 11670813 in words is "eleven million, six hundred seventy thousand, eight hundred thirteen".