87084443 has 2 divisors, whose sum is σ = 87084444. Its totient is φ = 87084442.

The previous prime is 87084433. The next prime is 87084457. The reversal of 87084443 is 34448078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87084443 - 2⁴ = 87084427 is a prime.

It is equal to p_5057849 and since 87084443 and 5057849 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 87084397 and 87084406.

It is not a weakly prime, because it can be changed into another prime (87084433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43542221 + 43542222.

It is an arithmetic number, because the mean of its divisors is an integer number (43542222).

Almost surely, 2^87084443 is an apocalyptic number.

87084443 is a deficient number, since it is larger than the sum of its proper divisors (1).

87084443 is an equidigital number, since it uses as much as digits as its factorization.

87084443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 87084443 is about 9331.9045751658. The cubic root of 87084443 is about 443.2480763309.

The spelling of 87084443 in words is "eighty-seven million, eighty-four thousand, four hundred forty-three".