963991028 has 144 divisors (see below), whose sum is σ = 2339863680. Its totient is φ = 337962240.

The previous prime is 963991027. The next prime is 963991037. The reversal of 963991028 is 820199369.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (963991027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1893638 + ... + 1894146.

Almost surely, 2^963991028 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 963991028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169931840).

963991028 is an abundant number, since it is smaller than the sum of its proper divisors (1375872652).

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

963991028 is a wasteful number, since it uses less digits than its factorization.

963991028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 963991028 is about 31048.2049078526. The cubic root of 963991028 is about 987.8499843259.

The spelling of 963991028 in words is "nine hundred sixty-three million, nine hundred ninety-one thousand, twenty-eight".