6626426 has 4 divisors (see below), whose sum is σ = 9939642. Its totient is φ = 3313212.

The previous prime is 6626423. The next prime is 6626443. The reversal of 6626426 is 6246266.

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., 3900625 + 2725801 = 1975^2 + 1651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6626392 and 6626401.

It is not an unprimeable number, because it can be changed into a prime (6626423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656605 + ... + 1656608.

Almost surely, 2^6626426 is an apocalyptic number.

6626426 is a deficient number, since it is larger than the sum of its proper divisors (3313216).

6626426 is a wasteful number, since it uses less digits than its factorization.

6626426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313215.

The product of its digits is 20736, while the sum is 32.

The square root of 6626426 is about 2574.1845310700. The cubic root of 6626426 is about 187.8277621242.

The spelling of 6626426 in words is "six million, six hundred twenty-six thousand, four hundred twenty-six".