534871649 has 6 divisors (see below), whose sum is σ = 579180726. Its totient is φ = 493727520.

The previous prime is 534871637. The next prime is 534871651. The reversal of 534871649 is 946178435.

It can be written as a sum of positive squares in 3 ways, for example, as 2739025 + 532132624 = 1655^2 + 23068^2 .

It is not a de Polignac number, because 534871649 - 2²⁴ = 518094433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (534871619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1582292 + ... + 1582629.

It is an arithmetic number, because the mean of its divisors is an integer number (96530121).

Almost surely, 2^534871649 is an apocalyptic number.

It is an amenable number.

534871649 is a deficient number, since it is larger than the sum of its proper divisors (44309077).

534871649 is a wasteful number, since it uses less digits than its factorization.

534871649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164947 (or 3164934 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 534871649 is about 23127.2922971973. The cubic root of 534871649 is about 811.7392131907.

The spelling of 534871649 in words is "five hundred thirty-four million, eight hundred seventy-one thousand, six hundred forty-nine".