87433344 has 112 divisors (see below), whose sum is σ = 261434670. Its totient is φ = 29113344.

The previous prime is 87433343. The next prime is 87433391. The reversal of 87433344 is 44333478.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86266944 + 1166400 = 9288^2 + 1080^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 87433299 and 87433308.

It is not an unprimeable number, because it can be changed into a prime (87433343) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 92844 + ... + 93780.

Almost surely, 2^87433344 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 87433344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130717335).

87433344 is an abundant number, since it is smaller than the sum of its proper divisors (174001326).

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

87433344 is an frugal number, since it uses more digits than its factorization.

87433344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 942 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 87433344 is about 9350.5798750666. The cubic root of 87433344 is about 443.8392405589.

The spelling of 87433344 in words is "eighty-seven million, four hundred thirty-three thousand, three hundred forty-four".