403604623 has 2 divisors, whose sum is σ = 403604624. Its totient is φ = 403604622.

The previous prime is 403604569. The next prime is 403604639. The reversal of 403604623 is 326406304.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403604623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 403604591 and 403604600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403604723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201802311 + 201802312.

It is an arithmetic number, because the mean of its divisors is an integer number (201802312).

Almost surely, 2^403604623 is an apocalyptic number.

403604623 is a deficient number, since it is larger than the sum of its proper divisors (1).

403604623 is an equidigital number, since it uses as much as digits as its factorization.

403604623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 403604623 is about 20089.9134642238. The cubic root of 403604623 is about 739.0129419602.

The spelling of 403604623 in words is "four hundred three million, six hundred four thousand, six hundred twenty-three".