84451276 has 48 divisors (see below), whose sum is σ = 191484160. Its totient is φ = 31648320.

The previous prime is 84451249. The next prime is 84451309. The reversal of 84451276 is 67215448.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811 + ... + 13021.

Almost surely, 2^84451276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84451276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95742080).

84451276 is an abundant number, since it is smaller than the sum of its proper divisors (107032884).

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

84451276 is a wasteful number, since it uses less digits than its factorization.

84451276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12254 (or 12252 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 84451276 is about 9189.7375370573. The cubic root of 84451276 is about 438.7347882595.

The spelling of 84451276 in words is "eighty-four million, four hundred fifty-one thousand, two hundred seventy-six".