11917427 has 8 divisors (see below), whose sum is σ = 13090560. Its totient is φ = 10798920.

The previous prime is 11917417. The next prime is 11917439. The reversal of 11917427 is 72471911.

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 11917427 - 2¹⁶ = 11851891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11917393 and 11917402.

It is not an unprimeable number, because it can be changed into a prime (11917417) 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, 13199 + ... + 14072.

It is an arithmetic number, because the mean of its divisors is an integer number (1636320).

Almost surely, 2^11917427 is an apocalyptic number.

11917427 is a deficient number, since it is larger than the sum of its proper divisors (1173133).

11917427 is a wasteful number, since it uses less digits than its factorization.

11917427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27313.

The product of its digits is 3528, while the sum is 32.

The square root of 11917427 is about 3452.1626554958. The cubic root of 11917427 is about 228.4165144691.

The spelling of 11917427 in words is "eleven million, nine hundred seventeen thousand, four hundred twenty-seven".