7922249 has 4 divisors (see below), whose sum is σ = 8195460. Its totient is φ = 7649040.

The previous prime is 7922231. The next prime is 7922261. The reversal of 7922249 is 9422297.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9422297 = 401 ⋅23497.

It can be written as a sum of positive squares in 2 ways, for example, as 3222025 + 4700224 = 1795^2 + 2168^2 .

It is not a de Polignac number, because 7922249 - 2¹² = 7918153 is a prime.

It is a d-powerful number, because it can be written as 7⁸ + 9³ + 2 + 2⁹ + 2²¹ + 4 + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7922209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136562 + ... + 136619.

It is an arithmetic number, because the mean of its divisors is an integer number (2048865).

Almost surely, 2^7922249 is an apocalyptic number.

It is an amenable number.

7922249 is a deficient number, since it is larger than the sum of its proper divisors (273211).

7922249 is a wasteful number, since it uses less digits than its factorization.

7922249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273210.

The product of its digits is 18144, while the sum is 35.

The square root of 7922249 is about 2814.6490012078. The cubic root of 7922249 is about 199.3499645585.

The spelling of 7922249 in words is "seven million, nine hundred twenty-two thousand, two hundred forty-nine".