71775946 has 16 divisors (see below), whose sum is σ = 117767520. Its totient is φ = 32537680.

The previous prime is 71775941. The next prime is 71775973. The reversal of 71775946 is 64957717.

It is a junction number, because it is equal to n+sod(n) for n = 71775896 and 71775905.

It is not an unprimeable number, because it can be changed into a prime (71775941) 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 7 ways as a sum of consecutive naturals, for example, 4365 + ... + 12751.

It is an arithmetic number, because the mean of its divisors is an integer number (7360470).

Almost surely, 2^71775946 is an apocalyptic number.

71775946 is a deficient number, since it is larger than the sum of its proper divisors (45991574).

71775946 is a wasteful number, since it uses less digits than its factorization.

71775946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8789.

The product of its digits is 370440, while the sum is 46.

The square root of 71775946 is about 8472.0685785704. The cubic root of 71775946 is about 415.5847874186.

The spelling of 71775946 in words is "seventy-one million, seven hundred seventy-five thousand, nine hundred forty-six".