870881663 has 8 divisors (see below), whose sum is σ = 919985520. Its totient is φ = 822104640.

The previous prime is 870881657. The next prime is 870881699. The reversal of 870881663 is 366188078.

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 870881663 - 2¹⁰ = 870880639 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 (870881603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76220 + ... + 86897.

It is an arithmetic number, because the mean of its divisors is an integer number (114998190).

Almost surely, 2^870881663 is an apocalyptic number.

870881663 is a deficient number, since it is larger than the sum of its proper divisors (49103857).

870881663 is a wasteful number, since it uses less digits than its factorization.

870881663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163417.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 870881663 is about 29510.7042105064. The cubic root of 870881663 is about 954.9626413755.

The spelling of 870881663 in words is "eight hundred seventy million, eight hundred eighty-one thousand, six hundred sixty-three".