395622629 has 2 divisors, whose sum is σ = 395622630. Its totient is φ = 395622628.

The previous prime is 395622607. The next prime is 395622707. The reversal of 395622629 is 926226593.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375390625 + 20232004 = 19375^2 + 4498^2 .

It is a cyclic number.

It is not a de Polignac number, because 395622629 - 2⁸ = 395622373 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 395622629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395622229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197811314 + 197811315.

It is an arithmetic number, because the mean of its divisors is an integer number (197811315).

Almost surely, 2^395622629 is an apocalyptic number.

It is an amenable number.

395622629 is a deficient number, since it is larger than the sum of its proper divisors (1).

395622629 is an equidigital number, since it uses as much as digits as its factorization.

395622629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 44.

The square root of 395622629 is about 19890.2646789830. The cubic root of 395622629 is about 734.1087065867.

The spelling of 395622629 in words is "three hundred ninety-five million, six hundred twenty-two thousand, six hundred twenty-nine".