885377221 has 24 divisors (see below), whose sum is σ = 980865000. Its totient is φ = 798034944.

The previous prime is 885377209. The next prime is 885377237. The reversal of 885377221 is 122773588.

It can be written as a sum of positive squares in 12 ways, for example, as 210105025 + 675272196 = 14495^2 + 25986^2 .

It is not a de Polignac number, because 885377221 - 2¹³ = 885369029 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 (885377281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1248415 + ... + 1249123.

It is an arithmetic number, because the mean of its divisors is an integer number (40869375).

Almost surely, 2^885377221 is an apocalyptic number.

It is an amenable number.

885377221 is a deficient number, since it is larger than the sum of its proper divisors (95487779).

885377221 is a wasteful number, since it uses less digits than its factorization.

885377221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 904 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The square root of 885377221 is about 29755.2889584356. The cubic root of 885377221 is about 960.2318670978.

The spelling of 885377221 in words is "eight hundred eighty-five million, three hundred seventy-seven thousand, two hundred twenty-one".