84449587 has 2 divisors, whose sum is σ = 84449588. Its totient is φ = 84449586.

The previous prime is 84449579. The next prime is 84449593. The reversal of 84449587 is 78594448.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84449587 - 2³ = 84449579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84449587.

It is not a weakly prime, because it can be changed into another prime (84449507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42224793 + 42224794.

It is an arithmetic number, because the mean of its divisors is an integer number (42224794).

Almost surely, 2^84449587 is an apocalyptic number.

84449587 is a deficient number, since it is larger than the sum of its proper divisors (1).

84449587 is an equidigital number, since it uses as much as digits as its factorization.

84449587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 49.

The square root of 84449587 is about 9189.6456406110. The cubic root of 84449587 is about 438.7318633856.

The spelling of 84449587 in words is "eighty-four million, four hundred forty-nine thousand, five hundred eighty-seven".