412890823 has 2 divisors, whose sum is σ = 412890824. Its totient is φ = 412890822.

The previous prime is 412890811. The next prime is 412890827. The reversal of 412890823 is 328098214.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412890823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412890827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206445411 + 206445412.

It is an arithmetic number, because the mean of its divisors is an integer number (206445412).

Almost surely, 2^412890823 is an apocalyptic number.

412890823 is a deficient number, since it is larger than the sum of its proper divisors (1).

412890823 is an equidigital number, since it uses as much as digits as its factorization.

412890823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 412890823 is about 20319.7151308772. The cubic root of 412890823 is about 744.6377969975.

The spelling of 412890823 in words is "four hundred twelve million, eight hundred ninety thousand, eight hundred twenty-three".