87203863 has 8 divisors (see below), whose sum is σ = 97193520. Its totient is φ = 77754240.

The previous prime is 87203849. The next prime is 87203881. The reversal of 87203863 is 36830278.

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

It is a cyclic number.

It is not a de Polignac number, because 87203863 - 2¹³ = 87195671 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 (87203063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134668 + ... + 135313.

It is an arithmetic number, because the mean of its divisors is an integer number (12149190).

Almost surely, 2^87203863 is an apocalyptic number.

87203863 is a deficient number, since it is larger than the sum of its proper divisors (9989657).

87203863 is a wasteful number, since it uses less digits than its factorization.

87203863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270017.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 87203863 is about 9338.3008625767. The cubic root of 87203863 is about 443.4505943549.

The spelling of 87203863 in words is "eighty-seven million, two hundred three thousand, eight hundred sixty-three".