345623983 has 2 divisors, whose sum is σ = 345623984. Its totient is φ = 345623982.

The previous prime is 345623959. The next prime is 345624031. The reversal of 345623983 is 389326543.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345623983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345623903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172811991 + 172811992.

It is an arithmetic number, because the mean of its divisors is an integer number (172811992).

Almost surely, 2^345623983 is an apocalyptic number.

345623983 is a deficient number, since it is larger than the sum of its proper divisors (1).

345623983 is an equidigital number, since it uses as much as digits as its factorization.

345623983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 43.

The square root of 345623983 is about 18590.9650906025. The cubic root of 345623983 is about 701.7804898320.

The spelling of 345623983 in words is "three hundred forty-five million, six hundred twenty-three thousand, nine hundred eighty-three".