63071771 has 6 divisors (see below), whose sum is σ = 73369260. Its totient is φ = 54061476.

The previous prime is 63071753. The next prime is 63071777. The reversal of 63071771 is 17717036.

63071771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63071771 - 2⁶ = 63071707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63071777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643541 + ... + 643638.

It is an arithmetic number, because the mean of its divisors is an integer number (12228210).

Almost surely, 2^63071771 is an apocalyptic number.

63071771 is a deficient number, since it is larger than the sum of its proper divisors (10297489).

63071771 is a wasteful number, since it uses less digits than its factorization.

63071771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287193 (or 1287186 counting only the distinct ones).

The product of its (nonzero) digits is 6174, while the sum is 32.

The square root of 63071771 is about 7941.7737943107. The cubic root of 63071771 is about 398.0567644599.

The spelling of 63071771 in words is "sixty-three million, seventy-one thousand, seven hundred seventy-one".