1298448247 has 8 divisors (see below), whose sum is σ = 1307955600. Its totient is φ = 1288956864.

The previous prime is 1298448241. The next prime is 1298448251. The reversal of 1298448247 is 7428448921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1298448247 - 2⁷ = 1298448119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1298448247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298448241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194379 + ... + 200947.

It is an arithmetic number, because the mean of its divisors is an integer number (163494450).

Almost surely, 2^1298448247 is an apocalyptic number.

1298448247 is a deficient number, since it is larger than the sum of its proper divisors (9507353).

1298448247 is a wasteful number, since it uses less digits than its factorization.

1298448247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985.

The product of its digits is 1032192, while the sum is 49.

The square root of 1298448247 is about 36033.9873869102. The cubic root of 1298448247 is about 1090.9584608880.

The spelling of 1298448247 in words is "one billion, two hundred ninety-eight million, four hundred forty-eight thousand, two hundred forty-seven".