697351 has 2 divisors, whose sum is σ = 697352. Its totient is φ = 697350.

The previous prime is 697327. The next prime is 697373. The reversal of 697351 is 153796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 697351 - 2¹⁵ = 664583 is a prime.

It is a Chen prime.

697351 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348675 + 348676.

It is an arithmetic number, because the mean of its divisors is an integer number (348676).

2⁶⁹⁷³⁵¹ is an apocalyptic number.

697351 is a deficient number, since it is larger than the sum of its proper divisors (1).

697351 is an equidigital number, since it uses as much as digits as its factorization.

697351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 31.

The square root of 697351 is about 835.0754456934. The cubic root of 697351 is about 88.6782558454.

The spelling of 697351 in words is "six hundred ninety-seven thousand, three hundred fifty-one".