87305828 has 6 divisors (see below), whose sum is σ = 152785206. Its totient is φ = 43652912.

The previous prime is 87305807. The next prime is 87305831. The reversal of 87305828 is 82850378.

It can be written as a sum of positive squares in only one way, i.e., 87198244 + 107584 = 9338^2 + 328^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10913225 + ... + 10913232.

It is an arithmetic number, because the mean of its divisors is an integer number (25464201).

Almost surely, 2^87305828 is an apocalyptic number.

It is an amenable number.

87305828 is a deficient number, since it is larger than the sum of its proper divisors (65479378).

87305828 is a wasteful number, since it uses less digits than its factorization.

87305828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21826461 (or 21826459 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 87305828 is about 9343.7587725711. The cubic root of 87305828 is about 443.6233650950.

The spelling of 87305828 in words is "eighty-seven million, three hundred five thousand, eight hundred twenty-eight".