7226431 has 2 divisors, whose sum is σ = 7226432. Its totient is φ = 7226430.

The previous prime is 7226381. The next prime is 7226437. The reversal of 7226431 is 1346227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7226431 - 2¹⁷ = 7095359 is a prime.

It is a super-2 number, since 2×7226431² = 104442609995522, which contains 22 as substring.

7226431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7226396 and 7226405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7226437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3613215 + 3613216.

It is an arithmetic number, because the mean of its divisors is an integer number (3613216).

Almost surely, 2^7226431 is an apocalyptic number.

7226431 is a deficient number, since it is larger than the sum of its proper divisors (1).

7226431 is an equidigital number, since it uses as much as digits as its factorization.

7226431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 7226431 is about 2688.2021873364. The cubic root of 7226431 is about 193.3338740241. Note that the first 3 decimals are identical.

The spelling of 7226431 in words is "seven million, two hundred twenty-six thousand, four hundred thirty-one".