9992722 has 4 divisors (see below), whose sum is σ = 14989086. Its totient is φ = 4996360.

The previous prime is 9992713. The next prime is 9992737. The reversal of 9992722 is 2272999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2272999 = 41 ⋅55439.

It can be written as a sum of positive squares in only one way, i.e., 7403841 + 2588881 = 2721^2 + 1609^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 9³ + 9⁴ + 9⁶ + 2²⁰ + 7⁵ + 2²² + 2²² .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498179 + ... + 2498182.

Almost surely, 2^9992722 is an apocalyptic number.

9992722 is a deficient number, since it is larger than the sum of its proper divisors (4996364).

9992722 is a wasteful number, since it uses less digits than its factorization.

9992722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996363.

The product of its digits is 40824, while the sum is 40.

The square root of 9992722 is about 3161.1266978721. The cubic root of 9992722 is about 215.3911897326.

It can be divided in two parts, 999 and 2722, that added together give a square (3721 = 61²).

The spelling of 9992722 in words is "nine million, nine hundred ninety-two thousand, seven hundred twenty-two".