7247426 has 4 divisors (see below), whose sum is σ = 10871142. Its totient is φ = 3623712.

The previous prime is 7247411. The next prime is 7247441. The reversal of 7247426 is 6247427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6247427 = 43 ⋅145289.

It is an interprime number because it is at equal distance from previous prime (7247411) and next prime (7247441).

It can be written as a sum of positive squares in only one way, i.e., 3806401 + 3441025 = 1951^2 + 1855^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7247392 and 7247401.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1811855 + ... + 1811858.

Almost surely, 2^7247426 is an apocalyptic number.

7247426 is a deficient number, since it is larger than the sum of its proper divisors (3623716).

7247426 is a wasteful number, since it uses less digits than its factorization.

7247426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623715.

The product of its digits is 18816, while the sum is 32.

The square root of 7247426 is about 2692.1043813344. The cubic root of 7247426 is about 193.5209244087.

Subtracting from 7247426 its reverse (6247427), we obtain a palindrome (999999).

The spelling of 7247426 in words is "seven million, two hundred forty-seven thousand, four hundred twenty-six".