63072705 has 16 divisors (see below), whose sum is σ = 101081664. Its totient is φ = 33583680.

The previous prime is 63072689. The next prime is 63072707. The reversal of 63072705 is 50727036.

It is not a de Polignac number, because 63072705 - 2⁴ = 63072689 is a prime.

It is a super-2 number, since 2×63072705² = 7956332232034050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (63072707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7050 + ... + 13260.

It is an arithmetic number, because the mean of its divisors is an integer number (6317604).

Almost surely, 2^63072705 is an apocalyptic number.

It is an amenable number.

63072705 is a deficient number, since it is larger than the sum of its proper divisors (38008959).

63072705 is a wasteful number, since it uses less digits than its factorization.

63072705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 63072705 is about 7941.8325970773. The cubic root of 63072705 is about 398.0587293282.

The spelling of 63072705 in words is "sixty-three million, seventy-two thousand, seven hundred five".