415823 has 2 divisors, whose sum is σ = 415824. Its totient is φ = 415822.

The previous prime is 415819. The next prime is 415861. The reversal of 415823 is 328514.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 415823 - 2² = 415819 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 415823.

It is not a weakly prime, because it can be changed into another prime (415873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207911 + 207912.

It is an arithmetic number, because the mean of its divisors is an integer number (207912).

2⁴¹⁵⁸²³ is an apocalyptic number.

415823 is a deficient number, since it is larger than the sum of its proper divisors (1).

415823 is an equidigital number, since it uses as much as digits as its factorization.

415823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 415823 is about 644.8433918402. The cubic root of 415823 is about 74.6396342230.

The spelling of 415823 in words is "four hundred fifteen thousand, eight hundred twenty-three".