345359977 has 2 divisors, whose sum is σ = 345359978. Its totient is φ = 345359976.

The previous prime is 345359953. The next prime is 345360013. The reversal of 345359977 is 779953543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344622096 + 737881 = 18564^2 + 859^2 .

It is an emirp because it is prime and its reverse (779953543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345359977 - 2⁷ = 345359849 is a prime.

It is not a weakly prime, because it can be changed into another prime (345359177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172679988 + 172679989.

It is an arithmetic number, because the mean of its divisors is an integer number (172679989).

Almost surely, 2^345359977 is an apocalyptic number.

It is an amenable number.

345359977 is a deficient number, since it is larger than the sum of its proper divisors (1).

345359977 is an equidigital number, since it uses as much as digits as its factorization.

345359977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3572100, while the sum is 52.

The square root of 345359977 is about 18583.8633496913. The cubic root of 345359977 is about 701.6017585487.

The spelling of 345359977 in words is "three hundred forty-five million, three hundred fifty-nine thousand, nine hundred seventy-seven".