87020502 has 8 divisors (see below), whose sum is σ = 174041016. Its totient is φ = 29006832.

The previous prime is 87020497. The next prime is 87020537. The reversal of 87020502 is 20502078.

It is a sphenic number, since it is the product of 3 distinct primes.

87020502 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7251703 + ... + 7251714.

It is an arithmetic number, because the mean of its divisors is an integer number (21755127).

Almost surely, 2^87020502 is an apocalyptic number.

87020502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87020502 is a wasteful number, since it uses less digits than its factorization.

87020502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14503422.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 87020502 is about 9328.4780109083. The cubic root of 87020502 is about 443.1395660786.

The spelling of 87020502 in words is "eighty-seven million, twenty thousand, five hundred two".