84447252 has 24 divisors (see below), whose sum is σ = 218937600. Its totient is φ = 28149048.

The previous prime is 84447247. The next prime is 84447257. The reversal of 84447252 is 25274448.

It is an interprime number because it is at equal distance from previous prime (84447247) and next prime (84447257).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84447257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390852 + ... + 391067.

It is an arithmetic number, because the mean of its divisors is an integer number (9122400).

Almost surely, 2^84447252 is an apocalyptic number.

It is an amenable number.

84447252 is an abundant number, since it is smaller than the sum of its proper divisors (134490348).

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

84447252 is a wasteful number, since it uses less digits than its factorization.

84447252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781932 (or 781924 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 84447252 is about 9189.5185945728. The cubic root of 84447252 is about 438.7278197568.

The spelling of 84447252 in words is "eighty-four million, four hundred forty-seven thousand, two hundred fifty-two".