1404423947 has 2 divisors, whose sum is σ = 1404423948. Its totient is φ = 1404423946.

The previous prime is 1404423901. The next prime is 1404423959. The reversal of 1404423947 is 7493244041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1404423947 - 2¹² = 1404419851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1404423947.

It is not a weakly prime, because it can be changed into another prime (1404423347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702211973 + 702211974.

It is an arithmetic number, because the mean of its divisors is an integer number (702211974).

Almost surely, 2^1404423947 is an apocalyptic number.

1404423947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404423947 is an equidigital number, since it uses as much as digits as its factorization.

1404423947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 1404423947 is about 37475.6447176029. The cubic root of 1404423947 is about 1119.8660413232.

Adding to 1404423947 its reverse (7493244041), we get a palindrome (8897667988).

The spelling of 1404423947 in words is "one billion, four hundred four million, four hundred twenty-three thousand, nine hundred forty-seven".