87734287 has 4 divisors (see below), whose sum is σ = 89172616. Its totient is φ = 86295960.

The previous prime is 87734281. The next prime is 87734291. The reversal of 87734287 is 78243778.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87734287 - 2³ = 87734279 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 (87734281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719073 + ... + 719194.

It is an arithmetic number, because the mean of its divisors is an integer number (22293154).

Almost surely, 2^87734287 is an apocalyptic number.

87734287 is a deficient number, since it is larger than the sum of its proper divisors (1438329).

87734287 is a wasteful number, since it uses less digits than its factorization.

87734287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438328.

The product of its digits is 526848, while the sum is 46.

The square root of 87734287 is about 9366.6582621552. The cubic root of 87734287 is about 444.3478846318.

The spelling of 87734287 in words is "eighty-seven million, seven hundred thirty-four thousand, two hundred eighty-seven".