2447390389 has 2 divisors, whose sum is σ = 2447390390. Its totient is φ = 2447390388.

The previous prime is 2447390369. The next prime is 2447390401. The reversal of 2447390389 is 9830937442.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1513599025 + 933791364 = 38905^2 + 30558^2 .

It is a cyclic number.

It is not a de Polignac number, because 2447390389 - 2⁵ = 2447390357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2447390369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1223695194 + 1223695195.

It is an arithmetic number, because the mean of its divisors is an integer number (1223695195).

Almost surely, 2^2447390389 is an apocalyptic number.

It is an amenable number.

2447390389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2447390389 is an equidigital number, since it uses as much as digits as its factorization.

2447390389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 2447390389 is about 49471.1066077968. The cubic root of 2447390389 is about 1347.6209382220.

The spelling of 2447390389 in words is "two billion, four hundred forty-seven million, three hundred ninety thousand, three hundred eighty-nine".