395690377 has 2 divisors, whose sum is σ = 395690378. Its totient is φ = 395690376.

The previous prime is 395690369. The next prime is 395690437. The reversal of 395690377 is 773096593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394062201 + 1628176 = 19851^2 + 1276^2 .

It is an emirp because it is prime and its reverse (773096593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395690377 - 2³ = 395690369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 395690377.

It is not a weakly prime, because it can be changed into another prime (395690177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197845188 + 197845189.

It is an arithmetic number, because the mean of its divisors is an integer number (197845189).

Almost surely, 2^395690377 is an apocalyptic number.

It is an amenable number.

395690377 is a deficient number, since it is larger than the sum of its proper divisors (1).

395690377 is an equidigital number, since it uses as much as digits as its factorization.

395690377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1071630, while the sum is 49.

The square root of 395690377 is about 19891.9676502854. The cubic root of 395690377 is about 734.1506080978.

The spelling of 395690377 in words is "three hundred ninety-five million, six hundred ninety thousand, three hundred seventy-seven".