888821916 has 12 divisors (see below), whose sum is σ = 2073917832. Its totient is φ = 296273968.

The previous prime is 888821909. The next prime is 888821951. The reversal of 888821916 is 619128888.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×888821916² = 1580008796723822112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37034235 + ... + 37034258.

It is an arithmetic number, because the mean of its divisors is an integer number (172826486).

Almost surely, 2^888821916 is an apocalyptic number.

It is an amenable number.

888821916 is an abundant number, since it is smaller than the sum of its proper divisors (1185095916).

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

888821916 is a wasteful number, since it uses less digits than its factorization.

888821916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74068500 (or 74068498 counting only the distinct ones).

The product of its digits is 442368, while the sum is 51.

The square root of 888821916 is about 29813.1165093487. The cubic root of 888821916 is about 961.4755650267.

The spelling of 888821916 in words is "eight hundred eighty-eight million, eight hundred twenty-one thousand, nine hundred sixteen".