87423488 has 20 divisors (see below), whose sum is σ = 174677250. Its totient is φ = 43711488.

The previous prime is 87423463. The next prime is 87423491. The reversal of 87423488 is 88432478.

It can be written as a sum of positive squares in only one way, i.e., 60715264 + 26708224 = 7792^2 + 5168^2 .

It is a super-2 number, since 2×87423488² = 15285732508172288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84863 + ... + 85886.

Almost surely, 2^87423488 is an apocalyptic number.

It is an amenable number.

87423488 is a deficient number, since it is larger than the sum of its proper divisors (87253762).

87423488 is an equidigital number, since it uses as much as digits as its factorization.

87423488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170767 (or 170751 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 87423488 is about 9350.0528340753. The cubic root of 87423488 is about 443.8225625437.

The spelling of 87423488 in words is "eighty-seven million, four hundred twenty-three thousand, four hundred eighty-eight".