826206973 has 2 divisors, whose sum is σ = 826206974. Its totient is φ = 826206972.

The previous prime is 826206971. The next prime is 826206991. The reversal of 826206973 is 379602628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 816702084 + 9504889 = 28578^2 + 3083^2 .

It is a cyclic number.

It is not a de Polignac number, because 826206973 - 2¹ = 826206971 is a prime.

Together with 826206971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (826206971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413103486 + 413103487.

It is an arithmetic number, because the mean of its divisors is an integer number (413103487).

Almost surely, 2^826206973 is an apocalyptic number.

It is an amenable number.

826206973 is a deficient number, since it is larger than the sum of its proper divisors (1).

826206973 is an equidigital number, since it uses as much as digits as its factorization.

826206973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 826206973 is about 28743.8162567186. The cubic root of 826206973 is about 938.3458811294.

The spelling of 826206973 in words is "eight hundred twenty-six million, two hundred six thousand, nine hundred seventy-three".