87443075 has 24 divisors (see below), whose sum is σ = 110899152. Its totient is φ = 68382720.

The previous prime is 87443071. The next prime is 87443101. The reversal of 87443075 is 57034478.

It is not a de Polignac number, because 87443075 - 2² = 87443071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87443071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259307 + ... + 259643.

It is an arithmetic number, because the mean of its divisors is an integer number (4620798).

Almost surely, 2^87443075 is an apocalyptic number.

87443075 is a deficient number, since it is larger than the sum of its proper divisors (23456077).

87443075 is a wasteful number, since it uses less digits than its factorization.

87443075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 87443075 is about 9351.1002026500. The cubic root of 87443075 is about 443.8557058235.

The spelling of 87443075 in words is "eighty-seven million, four hundred forty-three thousand, seventy-five".