11864475 has 96 divisors (see below), whose sum is σ = 26030080. Its totient is φ = 5248800.

The previous prime is 11864473. The next prime is 11864477. The reversal of 11864475 is 57446811.

It is a happy number.

11864475 is a `hidden beast` number, since 1 + 1 + 8 + 644 + 7 + 5 = 666.

11864475 is digitally balanced in base 2, 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 (11864473) and next prime (11864477).

It is not a de Polignac number, because 11864475 - 2¹ = 11864473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11864473) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 382710 + ... + 382740.

Almost surely, 2^11864475 is an apocalyptic number.

11864475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11864475 is an abundant number, since it is smaller than the sum of its proper divisors (14165605).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11864475 is an frugal number, since it uses more digits than its factorization.

11864475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 46 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 11864475 is about 3444.4847219867. The cubic root of 11864475 is about 228.0777089686.

The spelling of 11864475 in words is "eleven million, eight hundred sixty-four thousand, four hundred seventy-five".