697216327 has 2 divisors, whose sum is σ = 697216328. Its totient is φ = 697216326.

The previous prime is 697216321. The next prime is 697216337. The reversal of 697216327 is 723612796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 697216327 - 2¹¹ = 697214279 is a prime.

It is a super-2 number, since 2×697216327² = 972221213270741858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697216321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348608163 + 348608164.

It is an arithmetic number, because the mean of its divisors is an integer number (348608164).

Almost surely, 2^697216327 is an apocalyptic number.

697216327 is a deficient number, since it is larger than the sum of its proper divisors (1).

697216327 is an equidigital number, since it uses as much as digits as its factorization.

697216327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 43.

The square root of 697216327 is about 26404.8542317506. The cubic root of 697216327 is about 886.7254693855.

The spelling of 697216327 in words is "six hundred ninety-seven million, two hundred sixteen thousand, three hundred twenty-seven".