697481 has 2 divisors, whose sum is σ = 697482. Its totient is φ = 697480.

The previous prime is 697457. The next prime is 697507. The reversal of 697481 is 184796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697225 + 256 = 835^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 697481 - 2¹⁰ = 696457 is a prime.

It is a super-2 number, since 2×697481² = 972959490722, which contains 22 as substring.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697481.

It is not a weakly prime, because it can be changed into another prime (697441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348740 + 348741.

It is an arithmetic number, because the mean of its divisors is an integer number (348741).

2⁶⁹⁷⁴⁸¹ is an apocalyptic number.

It is an amenable number.

697481 is a deficient number, since it is larger than the sum of its proper divisors (1).

697481 is an equidigital number, since it uses as much as digits as its factorization.

697481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 697481 is about 835.1532793446. The cubic root of 697481 is about 88.6837659624.

The spelling of 697481 in words is "six hundred ninety-seven thousand, four hundred eighty-one".