87345873 has 6 divisors (see below), whose sum is σ = 126166274. Its totient is φ = 58230576.

The previous prime is 87345859. The next prime is 87345877. The reversal of 87345873 is 37854378.

It can be written as a sum of positive squares in only one way, i.e., 58798224 + 28547649 = 7668^2 + 5343^2 .

It is not a de Polignac number, because 87345873 - 2⁶ = 87345809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87345877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4852540 + ... + 4852557.

Almost surely, 2^87345873 is an apocalyptic number.

It is an amenable number.

87345873 is a deficient number, since it is larger than the sum of its proper divisors (38820401).

87345873 is a wasteful number, since it uses less digits than its factorization.

87345873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9705103 (or 9705100 counting only the distinct ones).

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

The square root of 87345873 is about 9345.9014011491. The cubic root of 87345873 is about 443.6911810421.

The spelling of 87345873 in words is "eighty-seven million, three hundred forty-five thousand, eight hundred seventy-three".