87038728 has 32 divisors (see below), whose sum is σ = 186831360. Its totient is φ = 37238400.

The previous prime is 87038723. The next prime is 87038729. The reversal of 87038728 is 82783078.

It is not an unprimeable number, because it can be changed into a prime (87038723) 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, 47428 + ... + 49228.

It is an arithmetic number, because the mean of its divisors is an integer number (5838480).

Almost surely, 2^87038728 is an apocalyptic number.

It is an amenable number.

87038728 is an abundant number, since it is smaller than the sum of its proper divisors (99792632).

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

87038728 is a wasteful number, since it uses less digits than its factorization.

87038728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677 (or 2673 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 87038728 is about 9329.4548608158. The cubic root of 87038728 is about 443.1705016924.

The spelling of 87038728 in words is "eighty-seven million, thirty-eight thousand, seven hundred twenty-eight".