87834573 has 12 divisors (see below), whose sum is σ = 127002460. Its totient is φ = 58496256.

The previous prime is 87834547. The next prime is 87834577. The reversal of 87834573 is 37543878.

87834573 is a `hidden beast` number, since 8 + 78 + 3 + 4 + 573 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47155689 + 40678884 = 6867^2 + 6378^2 .

It is not a de Polignac number, because 87834573 - 2⁸ = 87834317 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 (87834577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5373 + ... + 14301.

Almost surely, 2^87834573 is an apocalyptic number.

It is an amenable number.

87834573 is a deficient number, since it is larger than the sum of its proper divisors (39167887).

87834573 is a wasteful number, since it uses less digits than its factorization.

87834573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10028 (or 10025 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 87834573 is about 9372.0100832212. The cubic root of 87834573 is about 444.5171263472.

The spelling of 87834573 in words is "eighty-seven million, eight hundred thirty-four thousand, five hundred seventy-three".