404478797 has 2 divisors, whose sum is σ = 404478798. Its totient is φ = 404478796.

The previous prime is 404478791. The next prime is 404478847. The reversal of 404478797 is 797874404.

It is an a-pointer prime, because the next prime (404478847) can be obtained adding 404478797 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388326436 + 16152361 = 19706^2 + 4019^2 .

It is a cyclic number.

It is not a de Polignac number, because 404478797 - 2⁸ = 404478541 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 (404478791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202239398 + 202239399.

It is an arithmetic number, because the mean of its divisors is an integer number (202239399).

Almost surely, 2^404478797 is an apocalyptic number.

It is an amenable number.

404478797 is a deficient number, since it is larger than the sum of its proper divisors (1).

404478797 is an equidigital number, since it uses as much as digits as its factorization.

404478797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The square root of 404478797 is about 20111.6582359586. The cubic root of 404478797 is about 739.5461040453.

The spelling of 404478797 in words is "four hundred four million, four hundred seventy-eight thousand, seven hundred ninety-seven".