804398629 has 2 divisors, whose sum is σ = 804398630. Its totient is φ = 804398628.

The previous prime is 804398603. The next prime is 804398641. The reversal of 804398629 is 926893408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 465912225 + 338486404 = 21585^2 + 18398^2 .

It is a cyclic number.

It is not a de Polignac number, because 804398629 - 2⁵ = 804398597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804398669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402199314 + 402199315.

It is an arithmetic number, because the mean of its divisors is an integer number (402199315).

Almost surely, 2^804398629 is an apocalyptic number.

It is an amenable number.

804398629 is a deficient number, since it is larger than the sum of its proper divisors (1).

804398629 is an equidigital number, since it uses as much as digits as its factorization.

804398629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 804398629 is about 28361.9221668772. The cubic root of 804398629 is about 930.0160435819.

The spelling of 804398629 in words is "eight hundred four million, three hundred ninety-eight thousand, six hundred twenty-nine".