84263634 has 72 divisors (see below), whose sum is σ = 228746700. Its totient is φ = 22220352.

The previous prime is 84263633. The next prime is 84263639. The reversal of 84263634 is 43636248.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83448225 + 815409 = 9135^2 + 903^2 .

It is not an unprimeable number, because it can be changed into a prime (84263633) 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 35 ways as a sum of consecutive naturals, for example, 7792 + ... + 15140.

Almost surely, 2^84263634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84263634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114373350).

84263634 is an abundant number, since it is smaller than the sum of its proper divisors (144483066).

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

84263634 is a wasteful number, since it uses less digits than its factorization.

84263634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384 (or 7374 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 84263634 is about 9179.5225366029. The cubic root of 84263634 is about 438.4096061939.

The spelling of 84263634 in words is "eighty-four million, two hundred sixty-three thousand, six hundred thirty-four".