9972347 has 16 divisors (see below), whose sum is σ = 12625152. Its totient is φ = 7650720.

The previous prime is 9972343. The next prime is 9972377. The reversal of 9972347 is 7432799.

9972347 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9972347 - 2² = 9972343 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 9² + 9⁴ + 7 + 2⁵ + 3⁸ + 4¹¹ + 7⁸ .

It is a Duffinian number.

9972347 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (9972343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4193 + ... + 6125.

It is an arithmetic number, because the mean of its divisors is an integer number (789072).

Almost surely, 2^9972347 is an apocalyptic number.

9972347 is a deficient number, since it is larger than the sum of its proper divisors (2652805).

9972347 is a wasteful number, since it uses less digits than its factorization.

9972347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018.

The product of its digits is 95256, while the sum is 41.

The square root of 9972347 is about 3157.9023100786. The cubic root of 9972347 is about 215.2446970608.

The spelling of 9972347 in words is "nine million, nine hundred seventy-two thousand, three hundred forty-seven".