426608849 has 2 divisors, whose sum is σ = 426608850. Its totient is φ = 426608848.

The previous prime is 426608827. The next prime is 426608851. The reversal of 426608849 is 948806624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238918849 + 187690000 = 15457^2 + 13700^2 .

It is a cyclic number.

It is not a de Polignac number, because 426608849 - 2²⁴ = 409831633 is a prime.

It is a super-2 number, since 2×426608849² = 363990220090209602, which contains 22 as substring.

Together with 426608851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (426608869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213304424 + 213304425.

It is an arithmetic number, because the mean of its divisors is an integer number (213304425).

Almost surely, 2^426608849 is an apocalyptic number.

It is an amenable number.

426608849 is a deficient number, since it is larger than the sum of its proper divisors (1).

426608849 is an equidigital number, since it uses as much as digits as its factorization.

426608849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 426608849 is about 20654.5115894809. The cubic root of 426608849 is about 752.7948162515.

The spelling of 426608849 in words is "four hundred twenty-six million, six hundred eight thousand, eight hundred forty-nine".