345201977 has 2 divisors, whose sum is σ = 345201978. Its totient is φ = 345201976.

The previous prime is 345201953. The next prime is 345202003. The reversal of 345201977 is 779102543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325585936 + 19616041 = 18044^2 + 4429^2 .

It is a cyclic number.

It is not a de Polignac number, because 345201977 - 2¹⁰ = 345200953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345201977.

It is not a weakly prime, because it can be changed into another prime (345201947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172600988 + 172600989.

It is an arithmetic number, because the mean of its divisors is an integer number (172600989).

Almost surely, 2^345201977 is an apocalyptic number.

It is an amenable number.

345201977 is a deficient number, since it is larger than the sum of its proper divisors (1).

345201977 is an equidigital number, since it uses as much as digits as its factorization.

345201977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 345201977 is about 18579.6118635455. The cubic root of 345201977 is about 701.4947494428.

The spelling of 345201977 in words is "three hundred forty-five million, two hundred one thousand, nine hundred seventy-seven".