10897540 has 12 divisors (see below), whose sum is σ = 22884876. Its totient is φ = 4359008.

The previous prime is 10897529. The next prime is 10897541. The reversal of 10897540 is 4579801.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4384836 + 6512704 = 2094^2 + 2552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10897496 and 10897505.

It is not an unprimeable number, because it can be changed into a prime (10897541) 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, 272419 + ... + 272458.

It is an arithmetic number, because the mean of its divisors is an integer number (1907073).

Almost surely, 2^10897540 is an apocalyptic number.

10897540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10897540 is an abundant number, since it is smaller than the sum of its proper divisors (11987336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10897540 is a wasteful number, since it uses less digits than its factorization.

10897540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544886 (or 544884 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 10897540 is about 3301.1422265634. The cubic root of 10897540 is about 221.7053418363.

The spelling of 10897540 in words is "ten million, eight hundred ninety-seven thousand, five hundred forty".