11878513 has 8 divisors (see below), whose sum is σ = 12108096. Its totient is φ = 11650800.

The previous prime is 11878507. The next prime is 11878577. The reversal of 11878513 is 31587811.

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

It is a cyclic number.

It is not a de Polignac number, because 11878513 - 2²¹ = 9781361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11878583) 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, 20518 + ... + 21088.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512).

Almost surely, 2^11878513 is an apocalyptic number.

It is an amenable number.

11878513 is a deficient number, since it is larger than the sum of its proper divisors (229583).

11878513 is an equidigital number, since it uses as much as digits as its factorization.

11878513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935.

The product of its digits is 6720, while the sum is 34.

The square root of 11878513 is about 3446.5218699437. The cubic root of 11878513 is about 228.1676270627.

The spelling of 11878513 in words is "eleven million, eight hundred seventy-eight thousand, five hundred thirteen".