87749832 has 32 divisors (see below), whose sum is σ = 219621600. Its totient is φ = 29217024.

The previous prime is 87749819. The next prime is 87749839. The reversal of 87749832 is 23894778.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (87749839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29719 + ... + 32537.

It is an arithmetic number, because the mean of its divisors is an integer number (6863175).

Almost surely, 2^87749832 is an apocalyptic number.

It is an amenable number.

87749832 is an abundant number, since it is smaller than the sum of its proper divisors (131871768).

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

87749832 is a wasteful number, since it uses less digits than its factorization.

87749832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125 (or 4121 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 87749832 is about 9367.4880304167. The cubic root of 87749832 is about 444.3741266716.

The spelling of 87749832 in words is "eighty-seven million, seven hundred forty-nine thousand, eight hundred thirty-two".