87955387 has 4 divisors (see below), whose sum is σ = 94721200. Its totient is φ = 81189576.

The previous prime is 87955369. The next prime is 87955411. The reversal of 87955387 is 78355978.

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

It is a de Polignac number, because none of the positive numbers 2^k-87955387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87955367) 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, 3382887 + ... + 3382912.

It is an arithmetic number, because the mean of its divisors is an integer number (23680300).

Almost surely, 2^87955387 is an apocalyptic number.

87955387 is a deficient number, since it is larger than the sum of its proper divisors (6765813).

87955387 is a wasteful number, since it uses less digits than its factorization.

87955387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765812.

The product of its digits is 2116800, while the sum is 52.

The square root of 87955387 is about 9378.4533373046. The cubic root of 87955387 is about 444.7208399356.

The spelling of 87955387 in words is "eighty-seven million, nine hundred fifty-five thousand, three hundred eighty-seven".