9620472731 has 4 divisors (see below), whose sum is σ = 9952213200. Its totient is φ = 9288732264.

The previous prime is 9620472679. The next prime is 9620472767. The reversal of 9620472731 is 1372740269.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9620472731 is a prime.

It is a super-2 number, since 2×9620472731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9620478731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165870191 + ... + 165870248.

It is an arithmetic number, because the mean of its divisors is an integer number (2488053300).

Almost surely, 2^9620472731 is an apocalyptic number.

9620472731 is a deficient number, since it is larger than the sum of its proper divisors (331740469).

9620472731 is a wasteful number, since it uses less digits than its factorization.

9620472731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331740468.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 9620472731 is about 98084.0085385992. The cubic root of 9620472731 is about 2126.8268658809.

The spelling of 9620472731 in words is "nine billion, six hundred twenty million, four hundred seventy-two thousand, seven hundred thirty-one".