10661427 has 48 divisors (see below), whose sum is σ = 18690048. Its totient is φ = 5728320.

The previous prime is 10661423. The next prime is 10661449. The reversal of 10661427 is 72416601.

10661427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10661427 - 2² = 10661423 is a prime.

It is a super-2 number, since 2×10661427² = 227332051352658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10661427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103458 + ... + 103560.

It is an arithmetic number, because the mean of its divisors is an integer number (389376).

Almost surely, 2^10661427 is an apocalyptic number.

10661427 is a deficient number, since it is larger than the sum of its proper divisors (8028621).

10661427 is a wasteful number, since it uses less digits than its factorization.

10661427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 10661427 is about 3265.1840683184. The cubic root of 10661427 is about 220.0924336101.

The spelling of 10661427 in words is "ten million, six hundred sixty-one thousand, four hundred twenty-seven".