9738897407 has 2 divisors, whose sum is σ = 9738897408. Its totient is φ = 9738897406.

The previous prime is 9738897373. The next prime is 9738897463. The reversal of 9738897407 is 7047988379.

It is a weak prime.

It is an emirp because it is prime and its reverse (7047988379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9738897407 - 2¹⁴ = 9738881023 is a prime.

It is a super-2 number, since 2×9738897407² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9738897407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9738897607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4869448703 + 4869448704.

It is an arithmetic number, because the mean of its divisors is an integer number (4869448704).

Almost surely, 2^9738897407 is an apocalyptic number.

9738897407 is a deficient number, since it is larger than the sum of its proper divisors (1).

9738897407 is an equidigital number, since it uses as much as digits as its factorization.

9738897407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21337344, while the sum is 62.

The square root of 9738897407 is about 98685.8521116376. The cubic root of 9738897407 is about 2135.5181338757.

The spelling of 9738897407 in words is "nine billion, seven hundred thirty-eight million, eight hundred ninety-seven thousand, four hundred seven".