887121261 has 64 divisors (see below), whose sum is σ = 1476921600. Its totient is φ = 522692352.

The previous prime is 887121239. The next prime is 887121269. The reversal of 887121261 is 162121788.

887121261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 887121261 - 2¹⁸ = 886859117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887121269) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 799375 + ... + 800483.

It is an arithmetic number, because the mean of its divisors is an integer number (23076900).

Almost surely, 2^887121261 is an apocalyptic number.

It is an amenable number.

887121261 is a deficient number, since it is larger than the sum of its proper divisors (589800339).

887121261 is a wasteful number, since it uses less digits than its factorization.

887121261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1221 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 887121261 is about 29784.5809270502. The cubic root of 887121261 is about 960.8619504625.

The spelling of 887121261 in words is "eight hundred eighty-seven million, one hundred twenty-one thousand, two hundred sixty-one".