87540063 has 32 divisors (see below), whose sum is σ = 131991552. Its totient is φ = 51235200.

The previous prime is 87540029. The next prime is 87540071. The reversal of 87540063 is 36004578.

It is not a de Polignac number, because 87540063 - 2⁸ = 87539807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87540073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73156 + ... + 74342.

It is an arithmetic number, because the mean of its divisors is an integer number (4124736).

Almost surely, 2^87540063 is an apocalyptic number.

87540063 is a deficient number, since it is larger than the sum of its proper divisors (44451489).

87540063 is a wasteful number, since it uses less digits than its factorization.

87540063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 87540063 is about 9356.2846792944. The cubic root of 87540063 is about 444.0197469101.

The spelling of 87540063 in words is "eighty-seven million, five hundred forty thousand, sixty-three".