2403005623 has 2 divisors, whose sum is σ = 2403005624. Its totient is φ = 2403005622.

The previous prime is 2403005617. The next prime is 2403005653. The reversal of 2403005623 is 3265003042.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2403005623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2403005603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201502811 + 1201502812.

It is an arithmetic number, because the mean of its divisors is an integer number (1201502812).

Almost surely, 2^2403005623 is an apocalyptic number.

2403005623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2403005623 is an equidigital number, since it uses as much as digits as its factorization.

2403005623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2403005623 is about 49020.4612687396. The cubic root of 2403005623 is about 1339.4245734212.

Adding to 2403005623 its reverse (3265003042), we get a palindrome (5668008665).

It can be divided in two parts, 2 and 403005623, that added together give a square (403005625 = 20075²).

The spelling of 2403005623 in words is "two billion, four hundred three million, five thousand, six hundred twenty-three".