87893873 has 4 divisors (see below), whose sum is σ = 90037668. Its totient is φ = 85750080.

The previous prime is 87893837. The next prime is 87893881. The reversal of 87893873 is 37839878.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37839878 = 2 ⋅18919939.

It can be written as a sum of positive squares in 2 ways, for example, as 38725729 + 49168144 = 6223^2 + 7012^2 .

It is a cyclic number.

It is not a de Polignac number, because 87893873 - 2¹⁸ = 87631729 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 (87893803) 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, 1071836 + ... + 1071917.

It is an arithmetic number, because the mean of its divisors is an integer number (22509417).

Almost surely, 2^87893873 is an apocalyptic number.

It is an amenable number.

87893873 is a deficient number, since it is larger than the sum of its proper divisors (2143795).

87893873 is a wasteful number, since it uses less digits than its factorization.

87893873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143794.

The product of its digits is 2032128, while the sum is 53.

The square root of 87893873 is about 9375.1732250663. The cubic root of 87893873 is about 444.6171398718.

The spelling of 87893873 in words is "eighty-seven million, eight hundred ninety-three thousand, eight hundred seventy-three".