87163838 has 8 divisors (see below), whose sum is σ = 133786488. Its totient is φ = 42568344.

The previous prime is 87163837. The next prime is 87163873. The reversal of 87163838 is 83836178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87163837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506681 + ... + 506852.

It is an arithmetic number, because the mean of its divisors is an integer number (16723311).

Almost surely, 2^87163838 is an apocalyptic number.

87163838 is a deficient number, since it is larger than the sum of its proper divisors (46622650).

87163838 is a wasteful number, since it uses less digits than its factorization.

87163838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013578.

The product of its digits is 193536, while the sum is 44.

The square root of 87163838 is about 9336.1575607956. The cubic root of 87163838 is about 443.3827386979.

The spelling of 87163838 in words is "eighty-seven million, one hundred sixty-three thousand, eight hundred thirty-eight".