11478813 has 8 divisors (see below), whose sum is σ = 15334176. Its totient is φ = 7638000.

The previous prime is 11478799. The next prime is 11478827. The reversal of 11478813 is 31887411.

It is an interprime number because it is at equal distance from previous prime (11478799) and next prime (11478827).

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

It is not a de Polignac number, because 11478813 - 2⁵ = 11478781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11478833) 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, 1638 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (1916772).

Almost surely, 2^11478813 is an apocalyptic number.

It is an amenable number.

11478813 is a deficient number, since it is larger than the sum of its proper divisors (3855363).

11478813 is an equidigital number, since it uses as much as digits as its factorization.

11478813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275.

The product of its digits is 5376, while the sum is 33.

The square root of 11478813 is about 3388.0396987048. The cubic root of 11478813 is about 225.5791696161.

The spelling of 11478813 in words is "eleven million, four hundred seventy-eight thousand, eight hundred thirteen".