87004542 has 16 divisors (see below), whose sum is σ = 178253712. Its totient is φ = 28294080.

The previous prime is 87004537. The next prime is 87004543. The reversal of 87004542 is 24540078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87004543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 176593 + ... + 177084.

It is an arithmetic number, because the mean of its divisors is an integer number (11140857).

Almost surely, 2^87004542 is an apocalyptic number.

87004542 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

87004542 is an abundant number, since it is smaller than the sum of its proper divisors (91249170).

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

87004542 is a wasteful number, since it uses less digits than its factorization.

87004542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353723.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 87004542 is about 9327.6225266678. The cubic root of 87004542 is about 443.1124730767.

The spelling of 87004542 in words is "eighty-seven million, four thousand, five hundred forty-two".