4000276823 has 2 divisors, whose sum is σ = 4000276824. Its totient is φ = 4000276822.

The previous prime is 4000276789. The next prime is 4000276843. The reversal of 4000276823 is 3286720004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4000276823 - 2¹⁸ = 4000014679 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4000276823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000276843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000138411 + 2000138412.

It is an arithmetic number, because the mean of its divisors is an integer number (2000138412).

Almost surely, 2^4000276823 is an apocalyptic number.

4000276823 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000276823 is an equidigital number, since it uses as much as digits as its factorization.

4000276823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 4000276823 is about 63247.7416434769. The cubic root of 4000276823 is about 1587.4376702169.

Adding to 4000276823 its reverse (3286720004), we get a palindrome (7286996827).

The spelling of 4000276823 in words is "four billion, two hundred seventy-six thousand, eight hundred twenty-three".