1404077897 has 2 divisors, whose sum is σ = 1404077898. Its totient is φ = 1404077896.

The previous prime is 1404077867. The next prime is 1404077911. The reversal of 1404077897 is 7987704041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1048529161 + 355548736 = 32381^2 + 18856^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404077897 - 2¹⁴ = 1404061513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1404077867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702038948 + 702038949.

It is an arithmetic number, because the mean of its divisors is an integer number (702038949).

Almost surely, 2^1404077897 is an apocalyptic number.

It is an amenable number.

1404077897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404077897 is an equidigital number, since it uses as much as digits as its factorization.

1404077897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 1404077897 is about 37471.0274345393. The cubic root of 1404077897 is about 1119.7740554529.

The spelling of 1404077897 in words is "one billion, four hundred four million, seventy-seven thousand, eight hundred ninety-seven".