9722542 has 4 divisors (see below), whose sum is σ = 14583816. Its totient is φ = 4861270.

The previous prime is 9722513. The next prime is 9722549. The reversal of 9722542 is 2452279.

9722542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2452279 = 271 ⋅9049.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9722549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2430634 + ... + 2430637.

It is an arithmetic number, because the mean of its divisors is an integer number (3645954).

Almost surely, 2^9722542 is an apocalyptic number.

9722542 is a deficient number, since it is larger than the sum of its proper divisors (4861274).

9722542 is a wasteful number, since it uses less digits than its factorization.

9722542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861273.

The product of its digits is 10080, while the sum is 31.

The square root of 9722542 is about 3118.0991004136. The cubic root of 9722542 is about 213.4322008099.

The spelling of 9722542 in words is "nine million, seven hundred twenty-two thousand, five hundred forty-two".