444923147 has 2 divisors, whose sum is σ = 444923148. Its totient is φ = 444923146.

The previous prime is 444923123. The next prime is 444923173. The reversal of 444923147 is 741329444.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444923147 - 2¹² = 444919051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444923147.

It is not a weakly prime, because it can be changed into another prime (444923047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222461573 + 222461574.

It is an arithmetic number, because the mean of its divisors is an integer number (222461574).

Almost surely, 2^444923147 is an apocalyptic number.

444923147 is a deficient number, since it is larger than the sum of its proper divisors (1).

444923147 is an equidigital number, since it uses as much as digits as its factorization.

444923147 is an odious number, because the sum of its binary digits is odd.

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

The square root of 444923147 is about 21093.2014402745. The cubic root of 444923147 is about 763.4167188750.

The spelling of 444923147 in words is "four hundred forty-four million, nine hundred twenty-three thousand, one hundred forty-seven".