87657448 has 8 divisors (see below), whose sum is σ = 164357730. Its totient is φ = 43828720.

The previous prime is 87657443. The next prime is 87657461. The reversal of 87657448 is 84475678.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 87647044 + 10404 = 9362^2 + 102^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (87657443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5478583 + ... + 5478598.

Almost surely, 2^87657448 is an apocalyptic number.

It is an amenable number.

87657448 is a deficient number, since it is larger than the sum of its proper divisors (76700282).

87657448 is a wasteful number, since it uses less digits than its factorization.

87657448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10957187 (or 10957183 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 49.

The square root of 87657448 is about 9362.5556340136. Note that the first 3 decimals coincide. The cubic root of 87657448 is about 444.2181245693.

The spelling of 87657448 in words is "eighty-seven million, six hundred fifty-seven thousand, four hundred forty-eight".