1044649447 has 2 divisors, whose sum is σ = 1044649448. Its totient is φ = 1044649446.

The previous prime is 1044649429. The next prime is 1044649471. The reversal of 1044649447 is 7449464401.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044649447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044649427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522324723 + 522324724.

It is an arithmetic number, because the mean of its divisors is an integer number (522324724).

Almost surely, 2^1044649447 is an apocalyptic number.

1044649447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044649447 is an equidigital number, since it uses as much as digits as its factorization.

1044649447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 1044649447 is about 32321.0372203616. The cubic root of 1044649447 is about 1014.6669770627. Note that the first 3 decimals are identical.

The spelling of 1044649447 in words is "one billion, forty-four million, six hundred forty-nine thousand, four hundred forty-seven".