345803 has 2 divisors, whose sum is σ = 345804. Its totient is φ = 345802.

The previous prime is 345791. The next prime is 345811. The reversal of 345803 is 308543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345803 - 2⁶ = 345739 is a prime.

It is equal to p₂₉₆₄₂ and since 345803 and 29642 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 (345823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172901 + 172902.

It is an arithmetic number, because the mean of its divisors is an integer number (172902).

2³⁴⁵⁸⁰³ is an apocalyptic number.

345803 is a deficient number, since it is larger than the sum of its proper divisors (1).

345803 is an equidigital number, since it uses as much as digits as its factorization.

345803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 345803 is about 588.0501679279. The cubic root of 345803 is about 70.1901632037.

It can be divided in two parts, 34580 and 3, that multiplied together give a triangular number (103740 = T₄₅₅).

The spelling of 345803 in words is "three hundred forty-five thousand, eight hundred three".