697276823 has 2 divisors, whose sum is σ = 697276824. Its totient is φ = 697276822.

The previous prime is 697276817. The next prime is 697276843. The reversal of 697276823 is 328672796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 697276823 - 2⁴ = 697276807 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697276813) 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, 348638411 + 348638412.

It is an arithmetic number, because the mean of its divisors is an integer number (348638412).

Almost surely, 2^697276823 is an apocalyptic number.

697276823 is a deficient number, since it is larger than the sum of its proper divisors (1).

697276823 is an equidigital number, since it uses as much as digits as its factorization.

697276823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The square root of 697276823 is about 26405.9997538438. Note that the first 3 decimals coincide. The cubic root of 697276823 is about 886.7511150809.

The spelling of 697276823 in words is "six hundred ninety-seven million, two hundred seventy-six thousand, eight hundred twenty-three".