11572017 has 4 divisors (see below), whose sum is σ = 15429360. Its totient is φ = 7714676.

The previous prime is 11571983. The next prime is 11572037. The reversal of 11572017 is 71027511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71027511 = 3 ⋅23675837.

It is a cyclic number.

It is not a de Polignac number, because 11572017 - 2¹¹ = 11569969 is a prime.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928667 + ... + 1928672.

It is an arithmetic number, because the mean of its divisors is an integer number (3857340).

Almost surely, 2^11572017 is an apocalyptic number.

It is an amenable number.

11572017 is a deficient number, since it is larger than the sum of its proper divisors (3857343).

11572017 is an equidigital number, since it uses as much as digits as its factorization.

11572017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857342.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 11572017 is about 3401.7667468538. The cubic root of 11572017 is about 226.1880662361.

Adding to 11572017 its reverse (71027511), we get a palindrome (82599528).

The spelling of 11572017 in words is "eleven million, five hundred seventy-two thousand, seventeen".