887261220 has 36 divisors (see below), whose sum is σ = 2691359580. Its totient is φ = 236602944.

The previous prime is 887261213. The next prime is 887261233. The reversal of 887261220 is 22162788.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 112529664 + 774731556 = 10608^2 + 27834^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2464435 + ... + 2464794.

Almost surely, 2^887261220 is an apocalyptic number.

It is an amenable number.

887261220 is an abundant number, since it is smaller than the sum of its proper divisors (1804098360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

887261220 is a wasteful number, since it uses less digits than its factorization.

887261220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4929244 (or 4929239 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 887261220 is about 29786.9303554428. The cubic root of 887261220 is about 960.9124787695.

The spelling of 887261220 in words is "eight hundred eighty-seven million, two hundred sixty-one thousand, two hundred twenty".