697387 has 2 divisors, whose sum is σ = 697388. Its totient is φ = 697386.

The previous prime is 697381. The next prime is 697397. The reversal of 697387 is 783796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 697387 - 2³ = 697379 is a prime.

It is a nialpdrome in base 15.

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, 348693 + 348694.

It is an arithmetic number, because the mean of its divisors is an integer number (348694).

2⁶⁹⁷³⁸⁷ is an apocalyptic number.

697387 is a deficient number, since it is larger than the sum of its proper divisors (1).

697387 is an equidigital number, since it uses as much as digits as its factorization.

697387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 697387 is about 835.0970003539. The cubic root of 697387 is about 88.6797817925.

It can be divided in two parts, 6973 and 87, that multiplied together give a triangular number (606651 = T₁₁₀₁).

The spelling of 697387 in words is "six hundred ninety-seven thousand, three hundred eighty-seven".