540897 has 16 divisors (see below), whose sum is σ = 844800. Its totient is φ = 301392.

The previous prime is 540877. The next prime is 540901. The reversal of 540897 is 798045.

It is not a de Polignac number, because 540897 - 2⁷ = 540769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540877) 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, 604 + ... + 1202.

It is an arithmetic number, because the mean of its divisors is an integer number (52800).

2⁵⁴⁰⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

540897 is a deficient number, since it is larger than the sum of its proper divisors (303903).

540897 is a wasteful number, since it uses less digits than its factorization.

540897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 540897 is about 735.4570007825. The cubic root of 540897 is about 81.4775930473.

The spelling of 540897 in words is "five hundred forty thousand, eight hundred ninety-seven".