631662948 has 288 divisors, whose sum is σ = 2066448384. Its totient is φ = 164602368.

The previous prime is 631662947. The next prime is 631662953. The reversal of 631662948 is 849266136.

631662948 is a `hidden beast` number, since 6 + 3 + 16 + 629 + 4 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (631662947) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4973661 + ... + 4973787.

It is an arithmetic number, because the mean of its divisors is an integer number (7175168).

Almost surely, 2^631662948 is an apocalyptic number.

631662948 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631662948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033224192).

631662948 is an abundant number, since it is smaller than the sum of its proper divisors (1434785436).

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

631662948 is a wasteful number, since it uses less digits than its factorization.

631662948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 199 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 631662948 is about 25132.9056815960. The cubic root of 631662948 is about 858.0155017005.

The spelling of 631662948 in words is "six hundred thirty-one million, six hundred sixty-two thousand, nine hundred forty-eight".