87847895 has 16 divisors (see below), whose sum is σ = 107606880. Its totient is φ = 68834304.

The previous prime is 87847889. The next prime is 87847897. The reversal of 87847895 is 59874878.

87847895 = 77² + 78² + ... + 641².

It is a cyclic number.

It is not a de Polignac number, because 87847895 - 2¹⁴ = 87831511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87847895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87847897) 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 15 ways as a sum of consecutive naturals, for example, 49412 + ... + 51158.

It is an arithmetic number, because the mean of its divisors is an integer number (6725430).

Almost surely, 2^87847895 is an apocalyptic number.

87847895 is a deficient number, since it is larger than the sum of its proper divisors (19758985).

87847895 is a wasteful number, since it uses less digits than its factorization.

87847895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954.

The product of its digits is 4515840, while the sum is 56.

The square root of 87847895 is about 9372.7207896107. The cubic root of 87847895 is about 444.5395987351.

The spelling of 87847895 in words is "eighty-seven million, eight hundred forty-seven thousand, eight hundred ninety-five".