345584047 has 2 divisors, whose sum is σ = 345584048. Its totient is φ = 345584046.

The previous prime is 345584017. The next prime is 345584053. The reversal of 345584047 is 740485543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345584047 - 2⁷ = 345583919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345584017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172792023 + 172792024.

It is an arithmetic number, because the mean of its divisors is an integer number (172792024).

Almost surely, 2^345584047 is an apocalyptic number.

345584047 is a deficient number, since it is larger than the sum of its proper divisors (1).

345584047 is an equidigital number, since it uses as much as digits as its factorization.

345584047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 40.

The square root of 345584047 is about 18589.8909894598. The cubic root of 345584047 is about 701.7534591218.

The spelling of 345584047 in words is "three hundred forty-five million, five hundred eighty-four thousand, forty-seven".