87143375 has 16 divisors (see below), whose sum is σ = 118643616. Its totient is φ = 63376000.

The previous prime is 87143351. The next prime is 87143401. The reversal of 87143375 is 57334178.

It is not a de Polignac number, because 87143375 - 2¹² = 87139279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30314 + ... + 33063.

It is an arithmetic number, because the mean of its divisors is an integer number (7415226).

Almost surely, 2^87143375 is an apocalyptic number.

87143375 is a deficient number, since it is larger than the sum of its proper divisors (31500241).

87143375 is a wasteful number, since it uses less digits than its factorization.

87143375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63403 (or 63393 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 87143375 is about 9335.0615959403. The cubic root of 87143375 is about 443.3480390974.

The spelling of 87143375 in words is "eighty-seven million, one hundred forty-three thousand, three hundred seventy-five".