540858791 has 16 divisors (see below), whose sum is σ = 626123520. Its totient is φ = 461738880.

The previous prime is 540858779. The next prime is 540858809. The reversal of 540858791 is 197858045.

540858791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540858791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540858701) 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, 88100 + ... + 94038.

It is an arithmetic number, because the mean of its divisors is an integer number (39132720).

Almost surely, 2^540858791 is an apocalyptic number.

540858791 is a deficient number, since it is larger than the sum of its proper divisors (85264729).

540858791 is a wasteful number, since it uses less digits than its factorization.

540858791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 540858791 is about 23256.3709765733. The cubic root of 540858791 is about 814.7567447457.

The spelling of 540858791 in words is "five hundred forty million, eight hundred fifty-eight thousand, seven hundred ninety-one".