445756823 has 2 divisors, whose sum is σ = 445756824. Its totient is φ = 445756822.

The previous prime is 445756811. The next prime is 445756867. The reversal of 445756823 is 328657544.

It is an a-pointer prime, because the next prime (445756867) can be obtained adding 445756823 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445756823 - 2¹⁰ = 445755799 is a prime.

It is equal to p_23639957 and since 445756823 and 23639957 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445758823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222878411 + 222878412.

It is an arithmetic number, because the mean of its divisors is an integer number (222878412).

Almost surely, 2^445756823 is an apocalyptic number.

445756823 is a deficient number, since it is larger than the sum of its proper divisors (1).

445756823 is an equidigital number, since it uses as much as digits as its factorization.

445756823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 44.

The square root of 445756823 is about 21112.9539145994. The cubic root of 445756823 is about 763.8932394474.

The spelling of 445756823 in words is "four hundred forty-five million, seven hundred fifty-six thousand, eight hundred twenty-three".