534871391 has 4 divisors (see below), whose sum is σ = 566334432. Its totient is φ = 503408352.

The previous prime is 534871361. The next prime is 534871411. The reversal of 534871391 is 193178435.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 534871391 - 2¹⁸ = 534609247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534871301) 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, 15731495 + ... + 15731528.

It is an arithmetic number, because the mean of its divisors is an integer number (141583608).

Almost surely, 2^534871391 is an apocalyptic number.

534871391 is a deficient number, since it is larger than the sum of its proper divisors (31463041).

534871391 is a wasteful number, since it uses less digits than its factorization.

534871391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31463040.

The product of its digits is 90720, while the sum is 41.

The square root of 534871391 is about 23127.2867193711. The cubic root of 534871391 is about 811.7390826742.

The spelling of 534871391 in words is "five hundred thirty-four million, eight hundred seventy-one thousand, three hundred ninety-one".