9972455 has 16 divisors (see below), whose sum is σ = 13224384. Its totient is φ = 7180800.

The previous prime is 9972451. The next prime is 9972497. The reversal of 9972455 is 5542799.

9972455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9972455 - 2² = 9972451 is a prime.

It is a d-powerful number, because it can be written as 9⁷ + 9⁷ + 7 + 2⁸ + 4 + 5⁶ + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972451) 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, 596 + ... + 4505.

It is an arithmetic number, because the mean of its divisors is an integer number (826524).

Almost surely, 2^9972455 is an apocalyptic number.

9972455 is a deficient number, since it is larger than the sum of its proper divisors (3251929).

9972455 is a wasteful number, since it uses less digits than its factorization.

9972455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146.

The product of its digits is 113400, while the sum is 41.

The square root of 9972455 is about 3157.9194099913. The cubic root of 9972455 is about 215.2454740876.

The spelling of 9972455 in words is "nine million, nine hundred seventy-two thousand, four hundred fifty-five".