9497172281 has 8 divisors (see below), whose sum is σ = 10057128480. Its totient is φ = 8937360448.

The previous prime is 9497172257. The next prime is 9497172283. The reversal of 9497172281 is 1822717949.

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 9497172281 - 2²⁶ = 9430063417 is a prime.

It is a super-2 number, since 2×9497172281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9497172283) 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, 118250 + ... + 181596.

It is an arithmetic number, because the mean of its divisors is an integer number (1257141060).

Almost surely, 2^9497172281 is an apocalyptic number.

It is an amenable number.

9497172281 is a deficient number, since it is larger than the sum of its proper divisors (559956199).

9497172281 is a wasteful number, since it uses less digits than its factorization.

9497172281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72183.

The product of its digits is 508032, while the sum is 50.

The square root of 9497172281 is about 97453.4364760935. The cubic root of 9497172281 is about 2117.7016358567.

The spelling of 9497172281 in words is "nine billion, four hundred ninety-seven million, one hundred seventy-two thousand, two hundred eighty-one".