71425723 has 2 divisors, whose sum is σ = 71425724. Its totient is φ = 71425722.

The previous prime is 71425657. The next prime is 71425727. The reversal of 71425723 is 32752417.

It is a strong prime.

It is an emirp because it is prime and its reverse (32752417) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71425723 is a prime.

It is not a weakly prime, because it can be changed into another prime (71425727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35712861 + 35712862.

It is an arithmetic number, because the mean of its divisors is an integer number (35712862).

Almost surely, 2^71425723 is an apocalyptic number.

71425723 is a deficient number, since it is larger than the sum of its proper divisors (1).

71425723 is an equidigital number, since it uses as much as digits as its factorization.

71425723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 31.

The square root of 71425723 is about 8451.3740302983. The cubic root of 71425723 is about 414.9077513061.

The spelling of 71425723 in words is "seventy-one million, four hundred twenty-five thousand, seven hundred twenty-three".