542807 has 4 divisors (see below), whose sum is σ = 546600. Its totient is φ = 539016.

The previous prime is 542797. The next prime is 542821. The reversal of 542807 is 708245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708245 = 5 ⋅141649.

It is a cyclic number.

It is not a de Polignac number, because 542807 - 2⁴ = 542791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542807.

It is not an unprimeable number, because it can be changed into a prime (542837) 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, 1673 + ... + 1970.

It is an arithmetic number, because the mean of its divisors is an integer number (136650).

2⁵⁴²⁸⁰⁷ is an apocalyptic number.

542807 is a deficient number, since it is larger than the sum of its proper divisors (3793).

542807 is a wasteful number, since it uses less digits than its factorization.

542807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 542807 is about 736.7543688367. The cubic root of 542807 is about 81.5733841652.

The spelling of 542807 in words is "five hundred forty-two thousand, eight hundred seven".