84307944 has 64 divisors (see below), whose sum is σ = 243066240. Its totient is φ = 23869440.

The previous prime is 84307943. The next prime is 84307969. The reversal of 84307944 is 44970348.

It is not an unprimeable number, because it can be changed into a prime (84307943) 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, 16764 + ... + 21204.

It is an arithmetic number, because the mean of its divisors is an integer number (3797910).

Almost surely, 2^84307944 is an apocalyptic number.

84307944 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84307944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121533120).

84307944 is an abundant number, since it is smaller than the sum of its proper divisors (158758296).

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

84307944 is a wasteful number, since it uses less digits than its factorization.

84307944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570 (or 4566 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 84307944 is about 9181.9357436218. The cubic root of 84307944 is about 438.4864385698.

The spelling of 84307944 in words is "eighty-four million, three hundred seven thousand, nine hundred forty-four".