900823397 has 2 divisors, whose sum is σ = 900823398. Its totient is φ = 900823396.

The previous prime is 900823373. The next prime is 900823411. The reversal of 900823397 is 793328009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 830246596 + 70576801 = 28814^2 + 8401^2 .

It is a cyclic number.

It is not a de Polignac number, because 900823397 - 2¹² = 900819301 is a prime.

It is a super-2 number, since 2×900823397² = 1622965585165239218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900823097) 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, 450411698 + 450411699.

It is an arithmetic number, because the mean of its divisors is an integer number (450411699).

Almost surely, 2^900823397 is an apocalyptic number.

It is an amenable number.

900823397 is a deficient number, since it is larger than the sum of its proper divisors (1).

900823397 is an equidigital number, since it uses as much as digits as its factorization.

900823397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 900823397 is about 30013.7201459599. The cubic root of 900823397 is about 965.7837322897.

The spelling of 900823397 in words is "nine hundred million, eight hundred twenty-three thousand, three hundred ninety-seven".