87943424 has 18 divisors (see below), whose sum is σ = 175543830. Its totient is φ = 43971584.

The previous prime is 87943417. The next prime is 87943433. The reversal of 87943424 is 42434978.

It can be written as a sum of positive squares in only one way, i.e., 80281600 + 7661824 = 8960^2 + 2768^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171509 + ... + 172020.

It is an arithmetic number, because the mean of its divisors is an integer number (9752435).

Almost surely, 2^87943424 is an apocalyptic number.

It is an amenable number.

87943424 is a deficient number, since it is larger than the sum of its proper divisors (87600406).

87943424 is an equidigital number, since it uses as much as digits as its factorization.

87943424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343545 (or 343531 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 87943424 is about 9377.8155238840. The cubic root of 87943424 is about 444.7006765444.

The spelling of 87943424 in words is "eighty-seven million, nine hundred forty-three thousand, four hundred twenty-four".