891446616 has 48 divisors (see below), whose sum is σ = 2432790360. Its totient is φ = 294877440.

The previous prime is 891446609. The next prime is 891446681. The reversal of 891446616 is 616644198.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37825 + ... + 56688.

Almost surely, 2^891446616 is an apocalyptic number.

It is an amenable number.

891446616 is an abundant number, since it is smaller than the sum of its proper divisors (1541343744).

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

891446616 is a wasteful number, since it uses less digits than its factorization.

891446616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94656 (or 94649 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 891446616 is about 29857.1032754351. The cubic root of 891446616 is about 962.4210506110.

The spelling of 891446616 in words is "eight hundred ninety-one million, four hundred forty-six thousand, six hundred sixteen".