403438601 has 2 divisors, whose sum is σ = 403438602. Its totient is φ = 403438600.

The previous prime is 403438591. The next prime is 403438603. The reversal of 403438601 is 106834304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310605376 + 92833225 = 17624^2 + 9635^2 .

It is a cyclic number.

It is not a de Polignac number, because 403438601 - 2¹⁰ = 403437577 is a prime.

Together with 403438603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (403438603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201719300 + 201719301.

It is an arithmetic number, because the mean of its divisors is an integer number (201719301).

Almost surely, 2^403438601 is an apocalyptic number.

It is an amenable number.

403438601 is a deficient number, since it is larger than the sum of its proper divisors (1).

403438601 is an equidigital number, since it uses as much as digits as its factorization.

403438601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 403438601 is about 20085.7810652212. The cubic root of 403438601 is about 738.9115975366.

The spelling of 403438601 in words is "four hundred three million, four hundred thirty-eight thousand, six hundred one".