87681527 has 8 divisors (see below), whose sum is σ = 90174000. Its totient is φ = 85195584.

The previous prime is 87681487. The next prime is 87681571. The reversal of 87681527 is 72518678.

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

It is a cyclic number.

It is not a de Polignac number, because 87681527 - 2⁶ = 87681463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87681127) 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, 40724 + ... + 42822.

It is an arithmetic number, because the mean of its divisors is an integer number (11271750).

Almost surely, 2^87681527 is an apocalyptic number.

87681527 is a deficient number, since it is larger than the sum of its proper divisors (2492473).

87681527 is a wasteful number, since it uses less digits than its factorization.

87681527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265.

The product of its digits is 188160, while the sum is 44.

The square root of 87681527 is about 9363.8414659797. The cubic root of 87681527 is about 444.2587955722.

The spelling of 87681527 in words is "eighty-seven million, six hundred eighty-one thousand, five hundred twenty-seven".