826254397 has 2 divisors, whose sum is σ = 826254398. Its totient is φ = 826254396.

The previous prime is 826254391. The next prime is 826254431. The reversal of 826254397 is 793452628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556440921 + 269813476 = 23589^2 + 16426^2 .

It is a cyclic number.

It is not a de Polignac number, because 826254397 - 2³ = 826254389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (826254391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413127198 + 413127199.

It is an arithmetic number, because the mean of its divisors is an integer number (413127199).

Almost surely, 2^826254397 is an apocalyptic number.

It is an amenable number.

826254397 is a deficient number, since it is larger than the sum of its proper divisors (1).

826254397 is an equidigital number, since it uses as much as digits as its factorization.

826254397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The square root of 826254397 is about 28744.6411875327. The cubic root of 826254397 is about 938.3638343643.

The spelling of 826254397 in words is "eight hundred twenty-six million, two hundred fifty-four thousand, three hundred ninety-seven".