534485781 has 12 divisors (see below), whose sum is σ = 772380960. Its totient is φ = 356164200.

The previous prime is 534485773. The next prime is 534485813. The reversal of 534485781 is 187584435.

534485781 is a `hidden beast` number, since 5 + 34 + 48 + 578 + 1 = 666.

It is not a de Polignac number, because 534485781 - 2³ = 534485773 is a prime.

It is a super-2 number, since 2×534485781² = 571350100182359922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534485701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10056 + ... + 34206.

It is an arithmetic number, because the mean of its divisors is an integer number (64365080).

Almost surely, 2^534485781 is an apocalyptic number.

It is an amenable number.

534485781 is a deficient number, since it is larger than the sum of its proper divisors (237895179).

534485781 is a wasteful number, since it uses less digits than its factorization.

534485781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26616 (or 26613 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 534485781 is about 23118.9485271281. The cubic root of 534485781 is about 811.5439641437.

It can be divided in two parts, 5344 and 85781, that added together give a cube (91125 = 45³).

The spelling of 534485781 in words is "five hundred thirty-four million, four hundred eighty-five thousand, seven hundred eighty-one".