11556434 has 4 divisors (see below), whose sum is σ = 17334654. Its totient is φ = 5778216.

The previous prime is 11556431. The next prime is 11556451. The reversal of 11556434 is 43465511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43465511 = 1613 ⋅26947.

It can be written as a sum of positive squares in only one way, i.e., 11202409 + 354025 = 3347^2 + 595^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11556397 and 11556406.

It is not an unprimeable number, because it can be changed into a prime (11556431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2889107 + ... + 2889110.

Almost surely, 2^11556434 is an apocalyptic number.

11556434 is a deficient number, since it is larger than the sum of its proper divisors (5778220).

11556434 is an equidigital number, since it uses as much as digits as its factorization.

11556434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778219.

The product of its digits is 7200, while the sum is 29.

The square root of 11556434 is about 3399.4755477867. The cubic root of 11556434 is about 226.0864915510.

The spelling of 11556434 in words is "eleven million, five hundred fifty-six thousand, four hundred thirty-four".