63831090 has 64 divisors (see below), whose sum is σ = 163171584. Its totient is φ = 15925248.

The previous prime is 63831023. The next prime is 63831109. The reversal of 63831090 is 9013836.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130827 + ... + 131313.

It is an arithmetic number, because the mean of its divisors is an integer number (2549556).

Almost surely, 2^63831090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63831090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81585792).

63831090 is an abundant number, since it is smaller than the sum of its proper divisors (99340494).

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

63831090 is a wasteful number, since it uses less digits than its factorization.

63831090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 63831090 is about 7989.4361503175. The cubic root of 63831090 is about 399.6477941353.

The spelling of 63831090 in words is "sixty-three million, eight hundred thirty-one thousand, ninety".