887398561 has 8 divisors (see below), whose sum is σ = 1014426944. Its totient is φ = 760434480.

The previous prime is 887398531. The next prime is 887398571. The reversal of 887398561 is 165893788.

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 887398561 - 2¹¹ = 887396513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (887398531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18451 + ... + 45991.

It is an arithmetic number, because the mean of its divisors is an integer number (126803368).

Almost surely, 2^887398561 is an apocalyptic number.

It is an amenable number.

887398561 is a deficient number, since it is larger than the sum of its proper divisors (127028383).

887398561 is a wasteful number, since it uses less digits than its factorization.

887398561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32151.

The product of its digits is 2903040, while the sum is 55.

The square root of 887398561 is about 29789.2356565253. The cubic root of 887398561 is about 960.9620567550.

The spelling of 887398561 in words is "eight hundred eighty-seven million, three hundred ninety-eight thousand, five hundred sixty-one".