1404423697 has 2 divisors, whose sum is σ = 1404423698. Its totient is φ = 1404423696.

The previous prime is 1404423673. The next prime is 1404423719. The reversal of 1404423697 is 7963244041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1350121536 + 54302161 = 36744^2 + 7369^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404423697 - 2²⁷ = 1270205969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1404423607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702211848 + 702211849.

It is an arithmetic number, because the mean of its divisors is an integer number (702211849).

Almost surely, 2^1404423697 is an apocalyptic number.

It is an amenable number.

1404423697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404423697 is an equidigital number, since it uses as much as digits as its factorization.

1404423697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 1404423697 is about 37475.6413821031. The cubic root of 1404423697 is about 1119.8659748745.

The spelling of 1404423697 in words is "one billion, four hundred four million, four hundred twenty-three thousand, six hundred ninety-seven".