1447447423 has 2 divisors, whose sum is σ = 1447447424. Its totient is φ = 1447447422.

The previous prime is 1447447409. The next prime is 1447447447. The reversal of 1447447423 is 3247447441.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1447447423 - 2⁹ = 1447446911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1447447403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 723723711 + 723723712.

It is an arithmetic number, because the mean of its divisors is an integer number (723723712).

Almost surely, 2^1447447423 is an apocalyptic number.

1447447423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1447447423 is an equidigital number, since it uses as much as digits as its factorization.

1447447423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 40.

The square root of 1447447423 is about 38045.3337874699. Note that the first 3 decimals coincide. The cubic root of 1447447423 is about 1131.1866363459.

The spelling of 1447447423 in words is "one billion, four hundred forty-seven million, four hundred forty-seven thousand, four hundred twenty-three".