345700973 has 2 divisors, whose sum is σ = 345700974. Its totient is φ = 345700972.

The previous prime is 345700939. The next prime is 345700981. The reversal of 345700973 is 379007543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337016164 + 8684809 = 18358^2 + 2947^2 .

It is a cyclic number.

It is not a de Polignac number, because 345700973 - 2²⁰ = 344652397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345700913) 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, 172850486 + 172850487.

It is an arithmetic number, because the mean of its divisors is an integer number (172850487).

Almost surely, 2^345700973 is an apocalyptic number.

It is an amenable number.

345700973 is a deficient number, since it is larger than the sum of its proper divisors (1).

345700973 is an equidigital number, since it uses as much as digits as its factorization.

345700973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 345700973 is about 18593.0356047634. The cubic root of 345700973 is about 701.8325946928.

The spelling of 345700973 in words is "three hundred forty-five million, seven hundred thousand, nine hundred seventy-three".