63070720 has 80 divisors (see below), whose sum is σ = 153793728. Its totient is φ = 24801280.

The previous prime is 63070703. The next prime is 63070727. The reversal of 63070720 is 2707036.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (63070727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181587 + ... + 181933.

Almost surely, 2^63070720 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 63070720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76896864).

63070720 is an abundant number, since it is smaller than the sum of its proper divisors (90723008).

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

63070720 is an equidigital number, since it uses as much as digits as its factorization.

63070720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 63070720 is about 7941.7076249381. The cubic root of 63070720 is about 398.0545534338.

Adding to 63070720 its reverse (2707036), we get a palindrome (65777756).

The spelling of 63070720 in words is "sixty-three million, seventy thousand, seven hundred twenty".