87020582 has 16 divisors (see below), whose sum is σ = 144405504. Its totient is φ = 38997000.

The previous prime is 87020581. The next prime is 87020597. The reversal of 87020582 is 28502078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87020581) 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, 26294 + ... + 29417.

It is an arithmetic number, because the mean of its divisors is an integer number (9025344).

Almost surely, 2^87020582 is an apocalyptic number.

87020582 is a deficient number, since it is larger than the sum of its proper divisors (57384922).

87020582 is a wasteful number, since it uses less digits than its factorization.

87020582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55795.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 87020582 is about 9328.4822988523. The cubic root of 87020582 is about 443.1397018748.

The spelling of 87020582 in words is "eighty-seven million, twenty thousand, five hundred eighty-two".