7722997 has 4 divisors (see below), whose sum is σ = 7783936. Its totient is φ = 7662060.

The previous prime is 7722983. The next prime is 7723003. The reversal of 7722997 is 7992277.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7722997 - 2¹¹ = 7720949 is a prime.

It is a Duffinian number.

7722997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7722397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30279 + ... + 30532.

It is an arithmetic number, because the mean of its divisors is an integer number (1945984).

Almost surely, 2^7722997 is an apocalyptic number.

It is an amenable number.

7722997 is a deficient number, since it is larger than the sum of its proper divisors (60939).

7722997 is a wasteful number, since it uses less digits than its factorization.

7722997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60938.

The product of its digits is 111132, while the sum is 43.

The square root of 7722997 is about 2779.0280675085. The cubic root of 7722997 is about 197.6644744311.

The spelling of 7722997 in words is "seven million, seven hundred twenty-two thousand, nine hundred ninety-seven".