84449900 has 18 divisors (see below), whose sum is σ = 183256500. Its totient is φ = 33779920.

The previous prime is 84449899. The next prime is 84449903. The reversal of 84449900 is 994448.

It is a super-2 number, since 2×84449900² = 14263571220020000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84449903) 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 in 5 ways as a sum of consecutive naturals, for example, 422150 + ... + 422349.

Almost surely, 2^84449900 is an apocalyptic number.

It is an amenable number.

84449900 is an abundant number, since it is smaller than the sum of its proper divisors (98806600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84449900 is a wasteful number, since it uses less digits than its factorization.

84449900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844513 (or 844506 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 84449900 is about 9189.6626706316. The cubic root of 84449900 is about 438.7324054167.

The spelling of 84449900 in words is "eighty-four million, four hundred forty-nine thousand, nine hundred".