71825863 has 2 divisors, whose sum is σ = 71825864. Its totient is φ = 71825862.

The previous prime is 71825857. The next prime is 71825899. The reversal of 71825863 is 36852817.

It is a weak prime.

It is an emirp because it is prime and its reverse (36852817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71825863 - 2¹³ = 71817671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71825813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35912931 + 35912932.

It is an arithmetic number, because the mean of its divisors is an integer number (35912932).

Almost surely, 2^71825863 is an apocalyptic number.

71825863 is a deficient number, since it is larger than the sum of its proper divisors (1).

71825863 is an equidigital number, since it uses as much as digits as its factorization.

71825863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 71825863 is about 8475.0140412863. The cubic root of 71825863 is about 415.6811053813.

The spelling of 71825863 in words is "seventy-one million, eight hundred twenty-five thousand, eight hundred sixty-three".