71824745 has 16 divisors (see below), whose sum is σ = 95230080. Its totient is φ = 51727104.

The previous prime is 71824729. The next prime is 71824747. The reversal of 71824745 is 54742817.

It is a cyclic number.

It is not a de Polignac number, because 71824745 - 2⁴ = 71824729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71824699 and 71824708.

It is not an unprimeable number, because it can be changed into a prime (71824747) 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, 16415 + ... + 20324.

It is an arithmetic number, because the mean of its divisors is an integer number (5951880).

Almost surely, 2^71824745 is an apocalyptic number.

It is an amenable number.

71824745 is a deficient number, since it is larger than the sum of its proper divisors (23405335).

71824745 is a wasteful number, since it uses less digits than its factorization.

71824745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36784.

The product of its digits is 62720, while the sum is 38.

The square root of 71824745 is about 8474.9480824368. The cubic root of 71824745 is about 415.6789486192.

The spelling of 71824745 in words is "seventy-one million, eight hundred twenty-four thousand, seven hundred forty-five".