71727045 has 16 divisors (see below), whose sum is σ = 123591552. Its totient is φ = 35311680.

The previous prime is 71727043. The next prime is 71727049. The reversal of 71727045 is 54072717.

It is a happy number.

It is not a de Polignac number, because 71727045 - 2¹ = 71727043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71726997 and 71727015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71727043) 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, 183721 + ... + 184110.

It is an arithmetic number, because the mean of its divisors is an integer number (7724472).

Almost surely, 2^71727045 is an apocalyptic number.

It is an amenable number.

71727045 is a deficient number, since it is larger than the sum of its proper divisors (51864507).

71727045 is a wasteful number, since it uses less digits than its factorization.

71727045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367852.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 71727045 is about 8469.1820738487. The cubic root of 71727045 is about 415.4903865790.

The spelling of 71727045 in words is "seventy-one million, seven hundred twenty-seven thousand, forty-five".