11577217 has 4 divisors (see below), whose sum is σ = 11683540. Its totient is φ = 11470896.

The previous prime is 11577199. The next prime is 11577239. The reversal of 11577217 is 71277511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71277511 = 4099 ⋅17389.

It can be written as a sum of positive squares in 2 ways, for example, as 4822416 + 6754801 = 2196^2 + 2599^2 .

It is a cyclic number.

It is not a de Polignac number, because 11577217 - 2¹⁹ = 11052929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11577287) 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, 52998 + ... + 53215.

It is an arithmetic number, because the mean of its divisors is an integer number (2920885).

Almost surely, 2^11577217 is an apocalyptic number.

It is an amenable number.

11577217 is a deficient number, since it is larger than the sum of its proper divisors (106323).

11577217 is a wasteful number, since it uses less digits than its factorization.

11577217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106322.

The product of its digits is 3430, while the sum is 31.

The square root of 11577217 is about 3402.5309697341. The cubic root of 11577217 is about 226.2219411089.

The spelling of 11577217 in words is "eleven million, five hundred seventy-seven thousand, two hundred seventeen".