887916097849 has 27 divisors (see below), whose sum is σ = 1036966982191. Its totient is φ = 759563541440.

The previous prime is 887916097847. The next prime is 887916097877. The reversal of 887916097849 is 948790619788.

The square root of 887916097849 is 942293.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 691284159225 + 196631938624 = 831435^2 + 443432^2 .

It is not a de Polignac number, because 887916097849 - 2¹ = 887916097847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (887916097847) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 176206272 + ... + 176211310.

Almost surely, 2^887916097849 is an apocalyptic number.

887916097849 is the 942293-rd square number.

887916097849 is the 471147-th centered octagonal number.

It is an amenable number.

887916097849 is a deficient number, since it is larger than the sum of its proper divisors (149050884342).

887916097849 is an frugal number, since it uses more digits than its factorization.

887916097849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10134 (or 5067 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 76.

The spelling of 887916097849 in words is "eight hundred eighty-seven billion, nine hundred sixteen million, ninety-seven thousand, eight hundred forty-nine".