10947557 has 4 divisors (see below), whose sum is σ = 11300736. Its totient is φ = 10594380.

The previous prime is 10947551. The next prime is 10947571. The reversal of 10947557 is 75574901.

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: 75574901 = 3499 ⋅21599.

It is a cyclic number.

It is not a de Polignac number, because 10947557 - 2¹⁶ = 10882021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10947557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10947551) 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 3 ways as a sum of consecutive naturals, for example, 176543 + ... + 176604.

It is an arithmetic number, because the mean of its divisors is an integer number (2825184).

Almost surely, 2^10947557 is an apocalyptic number.

It is an amenable number.

10947557 is a deficient number, since it is larger than the sum of its proper divisors (353179).

10947557 is an equidigital number, since it uses as much as digits as its factorization.

10947557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353178.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 10947557 is about 3308.7092649551. The cubic root of 10947557 is about 222.0440150262.

The spelling of 10947557 in words is "ten million, nine hundred forty-seven thousand, five hundred fifty-seven".