10997547 has 16 divisors (see below), whose sum is σ = 16430592. Its totient is φ = 6484320.

The previous prime is 10997543. The next prime is 10997549. The reversal of 10997547 is 74579901.

It is a happy number.

It is not a de Polignac number, because 10997547 - 2² = 10997543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10997499 and 10997508.

It is not an unprimeable number, because it can be changed into a prime (10997543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3283 + ... + 5724.

It is an arithmetic number, because the mean of its divisors is an integer number (1026912).

Almost surely, 2^10997547 is an apocalyptic number.

10997547 is a deficient number, since it is larger than the sum of its proper divisors (5433045).

10997547 is a wasteful number, since it uses less digits than its factorization.

10997547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 10997547 is about 3316.2549660724. The cubic root of 10997547 is about 222.3814762426.

It can be divided in two parts, 1099 and 7547, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 10997547 in words is "ten million, nine hundred ninety-seven thousand, five hundred forty-seven".