542786685 has 16 divisors (see below), whose sum is σ = 992524416. Its totient is φ = 248131008.

The previous prime is 542786681. The next prime is 542786689. The reversal of 542786685 is 586687245.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (542786681) and next prime (542786689).

It is not a de Polignac number, because 542786685 - 2² = 542786681 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542786681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2584594 + ... + 2584803.

It is an arithmetic number, because the mean of its divisors is an integer number (62032776).

Almost surely, 2^542786685 is an apocalyptic number.

It is an amenable number.

542786685 is a deficient number, since it is larger than the sum of its proper divisors (449737731).

542786685 is a wasteful number, since it uses less digits than its factorization.

542786685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169412.

The product of its digits is 3225600, while the sum is 51.

The square root of 542786685 is about 23297.7828344244. The cubic root of 542786685 is about 815.7236650213.

The spelling of 542786685 in words is "five hundred forty-two million, seven hundred eighty-six thousand, six hundred eighty-five".