87648833 has 4 divisors (see below), whose sum is σ = 87671808. Its totient is φ = 87625860.

The previous prime is 87648829. The next prime is 87648853. The reversal of 87648833 is 33884678.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33884678 = 2 ⋅16942339.

It is a cyclic number.

It is not a de Polignac number, because 87648833 - 2² = 87648829 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87648823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4241 + ... + 13902.

It is an arithmetic number, because the mean of its divisors is an integer number (21917952).

Almost surely, 2^87648833 is an apocalyptic number.

It is an amenable number.

87648833 is a deficient number, since it is larger than the sum of its proper divisors (22975).

87648833 is a wasteful number, since it uses less digits than its factorization.

87648833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22974.

The product of its digits is 774144, while the sum is 47.

The square root of 87648833 is about 9362.0955453360. The cubic root of 87648833 is about 444.2035714628.

The spelling of 87648833 in words is "eighty-seven million, six hundred forty-eight thousand, eight hundred thirty-three".