9671270399 has 8 divisors (see below), whose sum is σ = 11076756480. Its totient is φ = 8271753336.

The previous prime is 9671270341. The next prime is 9671270449. The reversal of 9671270399 is 9930721769.

It is a happy number.

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

It is not a de Polignac number, because 9671270399 - 2¹² = 9671266303 is a prime.

It is a super-2 number, since 2×9671270399² (a number of 21 digits) contains 22 as substring.

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 9671270399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9671273399) 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, 1488779 + ... + 1495260.

It is an arithmetic number, because the mean of its divisors is an integer number (1384594560).

Almost surely, 2^9671270399 is an apocalyptic number.

9671270399 is a deficient number, since it is larger than the sum of its proper divisors (1405486081).

9671270399 is a wasteful number, since it uses less digits than its factorization.

9671270399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984509.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 9671270399 is about 98342.6174097476. The cubic root of 9671270399 is about 2130.5636277979.

The spelling of 9671270399 in words is "nine billion, six hundred seventy-one million, two hundred seventy thousand, three hundred ninety-nine".