71746845 has 16 divisors (see below), whose sum is σ = 115301760. Its totient is φ = 38096064.

The previous prime is 71746819. The next prime is 71746847. The reversal of 71746845 is 54864717.

It is not a de Polignac number, because 71746845 - 2⁶ = 71746781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71746797 and 71746806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71746847) 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, 7009 + ... + 13878.

It is an arithmetic number, because the mean of its divisors is an integer number (7206360).

Almost surely, 2^71746845 is an apocalyptic number.

It is an amenable number.

71746845 is a deficient number, since it is larger than the sum of its proper divisors (43554915).

71746845 is a wasteful number, since it uses less digits than its factorization.

71746845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21124.

The product of its digits is 188160, while the sum is 42.

The square root of 71746845 is about 8470.3509372398. The cubic root of 71746845 is about 415.5286146179.

The spelling of 71746845 in words is "seventy-one million, seven hundred forty-six thousand, eight hundred forty-five".