87859443 has 8 divisors (see below), whose sum is σ = 133881088. Its totient is φ = 50205384.

The previous prime is 87859411. The next prime is 87859463. The reversal of 87859443 is 34495878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87859443 - 2⁵ = 87859411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87859392 and 87859401.

It is not an unprimeable number, because it can be changed into a prime (87859463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2091871 + ... + 2091912.

It is an arithmetic number, because the mean of its divisors is an integer number (16735136).

Almost surely, 2^87859443 is an apocalyptic number.

87859443 is a deficient number, since it is larger than the sum of its proper divisors (46021645).

87859443 is a wasteful number, since it uses less digits than its factorization.

87859443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183793.

The product of its digits is 967680, while the sum is 48.

The square root of 87859443 is about 9373.3368124697. The cubic root of 87859443 is about 444.5590767900.

The spelling of 87859443 in words is "eighty-seven million, eight hundred fifty-nine thousand, four hundred forty-three".