87934005 has 20 divisors (see below), whose sum is σ = 157630572. Its totient is φ = 46897920.

The previous prime is 87933983. The next prime is 87934019. The reversal of 87934005 is 50043978.

It can be written as a sum of positive squares in 2 ways, for example, as 25492401 + 62441604 = 5049^2 + 7902^2 .

It is not a de Polignac number, because 87934005 - 2⁸ = 87933749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 108156 + ... + 108965.

Almost surely, 2^87934005 is an apocalyptic number.

It is an amenable number.

87934005 is a deficient number, since it is larger than the sum of its proper divisors (69696567).

87934005 is a wasteful number, since it uses less digits than its factorization.

87934005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217138 (or 217129 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 87934005 is about 9377.3133145907. The cubic root of 87934005 is about 444.6847997264.

The spelling of 87934005 in words is "eighty-seven million, nine hundred thirty-four thousand, five".