87020541 has 16 divisors (see below), whose sum is σ = 131353920. Its totient is φ = 56918160.

The previous prime is 87020537. The next prime is 87020567. The reversal of 87020541 is 14502078.

It is not a de Polignac number, because 87020541 - 2² = 87020537 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28975 + ... + 31836.

It is an arithmetic number, because the mean of its divisors is an integer number (8209620).

Almost surely, 2^87020541 is an apocalyptic number.

It is an amenable number.

87020541 is a deficient number, since it is larger than the sum of its proper divisors (44333379).

87020541 is a wasteful number, since it uses less digits than its factorization.

87020541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60873 (or 60867 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 87020541 is about 9328.4801012812. The cubic root of 87020541 is about 443.1396322793.

The spelling of 87020541 in words is "eighty-seven million, twenty thousand, five hundred forty-one".