1297005696 has 576 divisors, whose sum is σ = 4825154880. Its totient is φ = 344881152.

The previous prime is 1297005691. The next prime is 1297005709. The reversal of 1297005696 is 6965007921.

It is a happy number.

1297005696 is a `hidden beast` number, since 12 + 9 + 70 + 0 + 569 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is not an unprimeable number, because it can be changed into a prime (1297005691) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 35054190 + ... + 35054226.

It is an arithmetic number, because the mean of its divisors is an integer number (8377005).

Almost surely, 2^1297005696 is an apocalyptic number.

1297005696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297005696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412577440).

1297005696 is an abundant number, since it is smaller than the sum of its proper divisors (3528149184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297005696 is an equidigital number, since it uses as much as digits as its factorization.

1297005696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 1297005696 is about 36013.9652912589. The cubic root of 1297005696 is about 1090.5542998983.

The spelling of 1297005696 in words is "one billion, two hundred ninety-seven million, five thousand, six hundred ninety-six".