10971556 has 6 divisors (see below), whose sum is σ = 19200230. Its totient is φ = 5485776.

The previous prime is 10971553. The next prime is 10971557. The reversal of 10971556 is 65517901.

10971556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10824100 + 147456 = 3290^2 + 384^2 .

It is a super-2 number, since 2×10971556² = 240750082122272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10971553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1371441 + ... + 1371448.

Almost surely, 2^10971556 is an apocalyptic number.

It is an amenable number.

10971556 is a deficient number, since it is larger than the sum of its proper divisors (8228674).

10971556 is a wasteful number, since it uses less digits than its factorization.

10971556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742893 (or 2742891 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 10971556 is about 3312.3339203649. Note that the first 3 decimals coincide. The cubic root of 10971556 is about 222.2061499858.

The spelling of 10971556 in words is "ten million, nine hundred seventy-one thousand, five hundred fifty-six".