8437426 has 4 divisors (see below), whose sum is σ = 12656142. Its totient is φ = 4218712.

The previous prime is 8437421. The next prime is 8437433. The reversal of 8437426 is 6247348.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5880625 + 2556801 = 2425^2 + 1599^2 .

It is a d-powerful number, because it can be written as 8³ + 4⁴ + 3³ + 7³ + 4⁵ + 2²³ + 6⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 8437391 and 8437400.

It is not an unprimeable number, because it can be changed into a prime (8437421) 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 as a sum of consecutive naturals, namely, 2109355 + ... + 2109358.

Almost surely, 2^8437426 is an apocalyptic number.

8437426 is a deficient number, since it is larger than the sum of its proper divisors (4218716).

8437426 is a wasteful number, since it uses less digits than its factorization.

8437426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4218715.

The product of its digits is 32256, while the sum is 34.

The square root of 8437426 is about 2904.7247718157. The cubic root of 8437426 is about 203.5807260817.

The spelling of 8437426 in words is "eight million, four hundred thirty-seven thousand, four hundred twenty-six".