403688113 has 2 divisors, whose sum is σ = 403688114. Its totient is φ = 403688112.

The previous prime is 403688083. The next prime is 403688119. The reversal of 403688113 is 311886304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399720049 + 3968064 = 19993^2 + 1992^2 .

It is a cyclic number.

It is not a de Polignac number, because 403688113 - 2⁹ = 403687601 is a prime.

It is not a weakly prime, because it can be changed into another prime (403688119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201844056 + 201844057.

It is an arithmetic number, because the mean of its divisors is an integer number (201844057).

Almost surely, 2^403688113 is an apocalyptic number.

It is an amenable number.

403688113 is a deficient number, since it is larger than the sum of its proper divisors (1).

403688113 is an equidigital number, since it uses as much as digits as its factorization.

403688113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 403688113 is about 20091.9912651783. The cubic root of 403688113 is about 739.0638960648.

The spelling of 403688113 in words is "four hundred three million, six hundred eighty-eight thousand, one hundred thirteen".