1404312997 has 2 divisors, whose sum is σ = 1404312998. Its totient is φ = 1404312996.

The previous prime is 1404312991. The next prime is 1404313003. The reversal of 1404312997 is 7992134041.

It is a balanced prime because it is at equal distance from previous prime (1404312991) and next prime (1404313003).

It can be written as a sum of positive squares in only one way, i.e., 1404300676 + 12321 = 37474^2 + 111^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404312997 - 2²⁷ = 1270095269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404312991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702156498 + 702156499.

It is an arithmetic number, because the mean of its divisors is an integer number (702156499).

Almost surely, 2^1404312997 is an apocalyptic number.

It is an amenable number.

1404312997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404312997 is an equidigital number, since it uses as much as digits as its factorization.

1404312997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1404312997 is about 37474.1643936192. The cubic root of 1404312997 is about 1119.8365506058.

The spelling of 1404312997 in words is "one billion, four hundred four million, three hundred twelve thousand, nine hundred ninety-seven".