84455449 has 16 divisors (see below), whose sum is σ = 93767184. Its totient is φ = 75571200.

The previous prime is 84455419. The next prime is 84455461. The reversal of 84455449 is 94455448.

It can be written as a sum of positive squares in 8 ways, for example, as 37601424 + 46854025 = 6132^2 + 6845^2 .

It is not a de Polignac number, because 84455449 - 2⁵ = 84455417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84455419) 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, 102459 + ... + 103279.

It is an arithmetic number, because the mean of its divisors is an integer number (5860449).

Almost surely, 2^84455449 is an apocalyptic number.

It is an amenable number.

84455449 is a deficient number, since it is larger than the sum of its proper divisors (9311735).

84455449 is a wasteful number, since it uses less digits than its factorization.

84455449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its digits is 460800, while the sum is 43.

The square root of 84455449 is about 9189.9645809981. The cubic root of 84455449 is about 438.7420145569.

Subtracting 84455449 from its reverse (94455448), we obtain a palindrome (9999999).

The spelling of 84455449 in words is "eighty-four million, four hundred fifty-five thousand, four hundred forty-nine".