345586403 has 2 divisors, whose sum is σ = 345586404. Its totient is φ = 345586402.

The previous prime is 345586361. The next prime is 345586427. The reversal of 345586403 is 304685543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345586403 - 2⁸ = 345586147 is a prime.

It is equal to p_18579071 and since 345586403 and 18579071 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (345586463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172793201 + 172793202.

It is an arithmetic number, because the mean of its divisors is an integer number (172793202).

Almost surely, 2^345586403 is an apocalyptic number.

345586403 is a deficient number, since it is larger than the sum of its proper divisors (1).

345586403 is an equidigital number, since it uses as much as digits as its factorization.

345586403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 345586403 is about 18589.9543571252. The cubic root of 345586403 is about 701.7550538399.

The spelling of 345586403 in words is "three hundred forty-five million, five hundred eighty-six thousand, four hundred three".