378629 has 2 divisors, whose sum is σ = 378630. Its totient is φ = 378628.

The previous prime is 378619. The next prime is 378661. The reversal of 378629 is 926873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357604 + 21025 = 598^2 + 145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378629 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (378619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189314 + 189315.

It is an arithmetic number, because the mean of its divisors is an integer number (189315).

2³⁷⁸⁶²⁹ is an apocalyptic number.

It is an amenable number.

378629 is a deficient number, since it is larger than the sum of its proper divisors (1).

378629 is an equidigital number, since it uses as much as digits as its factorization.

378629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 378629 is about 615.3283676217. The cubic root of 378629 is about 72.3443509778.

The spelling of 378629 in words is "three hundred seventy-eight thousand, six hundred twenty-nine".