891550200 has 48 divisors (see below), whose sum is σ = 2763807480. Its totient is φ = 237746560.

The previous prime is 891550199. The next prime is 891550201. The reversal of 891550200 is 2055198.

It is an interprime number because it is at equal distance from previous prime (891550199) and next prime (891550201).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891550201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742359 + ... + 743558.

Almost surely, 2^891550200 is an apocalyptic number.

It is an amenable number.

891550200 is an abundant number, since it is smaller than the sum of its proper divisors (1872257280).

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

891550200 is a wasteful number, since it uses less digits than its factorization.

891550200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485936 (or 1485927 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 891550200 is about 29858.8378876339. The cubic root of 891550200 is about 962.4583261880.

The spelling of 891550200 in words is "eight hundred ninety-one million, five hundred fifty thousand, two hundred".