542791887 has 16 divisors (see below), whose sum is σ = 810855552. Its totient is φ = 320073120.

The previous prime is 542791883. The next prime is 542791891. The reversal of 542791887 is 788197245.

It is an interprime number because it is at equal distance from previous prime (542791883) and next prime (542791891).

It is not a de Polignac number, because 542791887 - 2² = 542791883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542791883) 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, 221053 + ... + 223494.

It is an arithmetic number, because the mean of its divisors is an integer number (50678472).

Almost surely, 2^542791887 is an apocalyptic number.

542791887 is a deficient number, since it is larger than the sum of its proper divisors (268063665).

542791887 is a wasteful number, since it uses less digits than its factorization.

542791887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444598.

The product of its digits is 1128960, while the sum is 51.

The square root of 542791887 is about 23297.8944756817. The cubic root of 542791887 is about 815.7262709443.

The spelling of 542791887 in words is "five hundred forty-two million, seven hundred ninety-one thousand, eight hundred eighty-seven".