9742722 has 16 divisors (see below), whose sum is σ = 21256992. Its totient is φ = 2952320.

The previous prime is 9742709. The next prime is 9742739. The reversal of 9742722 is 2272479.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73743 + ... + 73874.

It is an arithmetic number, because the mean of its divisors is an integer number (1328562).

Almost surely, 2^9742722 is an apocalyptic number.

9742722 is an abundant number, since it is smaller than the sum of its proper divisors (11514270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9742722 is a wasteful number, since it uses less digits than its factorization.

9742722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147633.

The product of its digits is 14112, while the sum is 33.

The square root of 9742722 is about 3121.3333689307. Note that the first 4 decimals coincide. The cubic root of 9742722 is about 213.5797645968.

The spelling of 9742722 in words is "nine million, seven hundred forty-two thousand, seven hundred twenty-two".