873564532 has 24 divisors (see below), whose sum is σ = 1572814152. Its totient is φ = 424281600.

The previous prime is 873564493. The next prime is 873564563. The reversal of 873564532 is 235465378.

It can be written as a sum of positive squares in 4 ways, for example, as 41011216 + 832553316 = 6404^2 + 28854^2 .

It is a super-2 number, since 2×873564532² = 1526229983136758048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26782 + ... + 49642.

It is an arithmetic number, because the mean of its divisors is an integer number (65533923).

Almost surely, 2^873564532 is an apocalyptic number.

873564532 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

873564532 is a deficient number, since it is larger than the sum of its proper divisors (699249620).

873564532 is a wasteful number, since it uses less digits than its factorization.

873564532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23139 (or 23137 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The square root of 873564532 is about 29556.1251181544. The cubic root of 873564532 is about 955.9422667236.

The spelling of 873564532 in words is "eight hundred seventy-three million, five hundred sixty-four thousand, five hundred thirty-two".