84686472 has 112 divisors (see below), whose sum is σ = 256614540. Its totient is φ = 26034048.

The previous prime is 84686471. The next prime is 84686501. The reversal of 84686472 is 27468648.

It can be written as a sum of positive squares in 2 ways, for example, as 66487716 + 18198756 = 8154^2 + 4266^2 .

It is not an unprimeable number, because it can be changed into a prime (84686471) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 75258 + ... + 76374.

Almost surely, 2^84686472 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 84686472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128307270).

84686472 is an abundant number, since it is smaller than the sum of its proper divisors (171928068).

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

84686472 is a wasteful number, since it uses less digits than its factorization.

84686472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1135 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 84686472 is about 9202.5253055887. The cubic root of 84686472 is about 439.1417014799.

It can be divided in two parts, 84686 and 472, that added together give a palindrome (85158).

The spelling of 84686472 in words is "eighty-four million, six hundred eighty-six thousand, four hundred seventy-two".