7226749 has 4 divisors (see below), whose sum is σ = 7278880. Its totient is φ = 7174620.

The previous prime is 7226741. The next prime is 7226753. The reversal of 7226749 is 9476227.

It is a happy number.

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 7226749 - 2³ = 7226741 is a prime.

It is a super-2 number, since 2×7226749² = 104451802218002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7226741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25857 + ... + 26134.

It is an arithmetic number, because the mean of its divisors is an integer number (1819720).

Almost surely, 2^7226749 is an apocalyptic number.

It is an amenable number.

7226749 is a deficient number, since it is larger than the sum of its proper divisors (52131).

7226749 is a wasteful number, since it uses less digits than its factorization.

7226749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52130.

The product of its digits is 42336, while the sum is 37.

The square root of 7226749 is about 2688.2613340224. The cubic root of 7226749 is about 193.3367098763.

The spelling of 7226749 in words is "seven million, two hundred twenty-six thousand, seven hundred forty-nine".