11572087 has 8 divisors (see below), whose sum is σ = 12319776. Its totient is φ = 10831872.

The previous prime is 11572079. The next prime is 11572129. The reversal of 11572087 is 78027511.

It is a happy number.

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 11572087 - 2³ = 11572079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518 + ... + 5044.

It is an arithmetic number, because the mean of its divisors is an integer number (1539972).

Almost surely, 2^11572087 is an apocalyptic number.

11572087 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11572087 is a deficient number, since it is larger than the sum of its proper divisors (747689).

11572087 is a wasteful number, since it uses less digits than its factorization.

11572087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 11572087 is about 3401.7770356095. Note that the first 3 decimals coincide. The cubic root of 11572087 is about 226.1885223114.

Adding to 11572087 its reverse (78027511), we get a palindrome (89599598).

The spelling of 11572087 in words is "eleven million, five hundred seventy-two thousand, eighty-seven".