891352920 has 64 divisors (see below), whose sum is σ = 2760330240. Its totient is φ = 230025600.

The previous prime is 891352919. The next prime is 891352933. The reversal of 891352920 is 29253198.

891352920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116086 + ... + 123525.

It is an arithmetic number, because the mean of its divisors is an integer number (43130160).

Almost surely, 2^891352920 is an apocalyptic number.

It is an amenable number.

891352920 is an abundant number, since it is smaller than the sum of its proper divisors (1868977320).

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

891352920 is a wasteful number, since it uses less digits than its factorization.

891352920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239656 (or 239652 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 891352920 is about 29855.5341603529. The cubic root of 891352920 is about 962.3873308269.

The spelling of 891352920 in words is "eight hundred ninety-one million, three hundred fifty-two thousand, nine hundred twenty".