87894443 has 16 divisors (see below), whose sum is σ = 108407040. Its totient is φ = 69395616.

The previous prime is 87894421. The next prime is 87894449. The reversal of 87894443 is 34449878.

It is a cyclic number.

It is not a de Polignac number, because 87894443 - 2²⁰ = 86845867 is a prime.

It is a super-2 number, since 2×87894443² = 15450866220560498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87894449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66596 + ... + 67902.

It is an arithmetic number, because the mean of its divisors is an integer number (6775440).

Almost surely, 2^87894443 is an apocalyptic number.

87894443 is a deficient number, since it is larger than the sum of its proper divisors (20512597).

87894443 is a wasteful number, since it uses less digits than its factorization.

87894443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066.

The product of its digits is 774144, while the sum is 47.

The square root of 87894443 is about 9375.2036244553. The cubic root of 87894443 is about 444.6181009976.

The spelling of 87894443 in words is "eighty-seven million, eight hundred ninety-four thousand, four hundred forty-three".