11995715 has 4 divisors (see below), whose sum is σ = 14394864. Its totient is φ = 9596568.

The previous prime is 11995691. The next prime is 11995717. The reversal of 11995715 is 51759911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11995715 - 2⁶ = 11995651 is a prime.

It is a super-2 number, since 2×11995715² = 287794356722450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11995717) 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 3 ways as a sum of consecutive naturals, for example, 1199567 + ... + 1199576.

It is an arithmetic number, because the mean of its divisors is an integer number (3598716).

Almost surely, 2^11995715 is an apocalyptic number.

11995715 is a deficient number, since it is larger than the sum of its proper divisors (2399149).

11995715 is an equidigital number, since it uses as much as digits as its factorization.

11995715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399148.

The product of its digits is 14175, while the sum is 38.

The square root of 11995715 is about 3463.4830734392. The cubic root of 11995715 is about 228.9155947080.

The spelling of 11995715 in words is "eleven million, nine hundred ninety-five thousand, seven hundred fifteen".