900861552 has 90 divisors (see below), whose sum is σ = 2678312208. Its totient is φ = 282610176.

The previous prime is 900861551. The next prime is 900861557. The reversal of 900861552 is 255168009.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900861551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30793 + ... + 52439.

Almost surely, 2^900861552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 900861552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339156104).

900861552 is an abundant number, since it is smaller than the sum of its proper divisors (1777450656).

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

900861552 is a wasteful number, since it uses less digits than its factorization.

900861552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21695 (or 21669 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 900861552 is about 30014.3557652001. The cubic root of 900861552 is about 965.7973675772.

The spelling of 900861552 in words is "nine hundred million, eight hundred sixty-one thousand, five hundred fifty-two".