84428463 has 16 divisors (see below), whose sum is σ = 128943360. Its totient is φ = 48135936.

The previous prime is 84428447. The next prime is 84428467. The reversal of 84428463 is 36482448.

It is not a de Polignac number, because 84428463 - 2⁴ = 84428447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84428467) 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, 5503 + ... + 14111.

It is an arithmetic number, because the mean of its divisors is an integer number (8058960).

Almost surely, 2^84428463 is an apocalyptic number.

84428463 is a deficient number, since it is larger than the sum of its proper divisors (44514897).

84428463 is a wasteful number, since it uses less digits than its factorization.

84428463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9086.

The product of its digits is 147456, while the sum is 39.

The square root of 84428463 is about 9188.4962317019. The cubic root of 84428463 is about 438.6952792528.

The spelling of 84428463 in words is "eighty-four million, four hundred twenty-eight thousand, four hundred sixty-three".