87270847 has 4 divisors (see below), whose sum is σ = 87522696. Its totient is φ = 87019000.

The previous prime is 87270839. The next prime is 87270871. The reversal of 87270847 is 74807278.

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 87270847 - 2³ = 87270839 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 (87270817) 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 3 ways as a sum of consecutive naturals, for example, 125404 + ... + 126097.

It is an arithmetic number, because the mean of its divisors is an integer number (21880674).

Almost surely, 2^87270847 is an apocalyptic number.

87270847 is a deficient number, since it is larger than the sum of its proper divisors (251849).

87270847 is a wasteful number, since it uses less digits than its factorization.

87270847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251848.

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 87270847 is about 9341.8866938108. The cubic root of 87270847 is about 443.5641080276.

The spelling of 87270847 in words is "eighty-seven million, two hundred seventy thousand, eight hundred forty-seven".