10990571 has 4 divisors (see below), whose sum is σ = 11046000. Its totient is φ = 10935144.

The previous prime is 10990561. The next prime is 10990597. The reversal of 10990571 is 17509901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17509901 = 43 ⋅407207.

It is a cyclic number.

It is not a de Polignac number, because 10990571 - 2¹⁸ = 10728427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10990541) 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, 27416 + ... + 27813.

It is an arithmetic number, because the mean of its divisors is an integer number (2761500).

Almost surely, 2^10990571 is an apocalyptic number.

10990571 is a deficient number, since it is larger than the sum of its proper divisors (55429).

10990571 is an equidigital number, since it uses as much as digits as its factorization.

10990571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55428.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 10990571 is about 3315.2030103751. The cubic root of 10990571 is about 222.3344457151.

The spelling of 10990571 in words is "ten million, nine hundred ninety thousand, five hundred seventy-one".