63907272 has 128 divisors (see below), whose sum is σ = 208656000. Its totient is φ = 17867520.

The previous prime is 63907243. The next prime is 63907273. The reversal of 63907272 is 27270936.

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 (63907273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29854 + ... + 31922.

It is an arithmetic number, because the mean of its divisors is an integer number (1630125).

Almost surely, 2^63907272 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 63907272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104328000).

63907272 is an abundant number, since it is smaller than the sum of its proper divisors (144748728).

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

63907272 is a wasteful number, since it uses less digits than its factorization.

63907272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108 (or 2098 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 63907272 is about 7994.2023992391. The cubic root of 63907272 is about 399.8067232920.

The spelling of 63907272 in words is "sixty-three million, nine hundred seven thousand, two hundred seventy-two".