4180823 has 2 divisors, whose sum is σ = 4180824. Its totient is φ = 4180822.

The previous prime is 4180819. The next prime is 4180831. The reversal of 4180823 is 3280814.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4180823 - 2² = 4180819 is a prime.

It is a super-3 number, since 3×4180823³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4180792 and 4180801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4180723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2090411 + 2090412.

It is an arithmetic number, because the mean of its divisors is an integer number (2090412).

Almost surely, 2^4180823 is an apocalyptic number.

4180823 is a deficient number, since it is larger than the sum of its proper divisors (1).

4180823 is an equidigital number, since it uses as much as digits as its factorization.

4180823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 4180823 is about 2044.7060913491. The cubic root of 4180823 is about 161.0969286322.

Subtracting from 4180823 its reverse (3280814), we obtain a palindrome (900009).

The spelling of 4180823 in words is "four million, one hundred eighty thousand, eight hundred twenty-three".