697541 has 4 divisors (see below), whose sum is σ = 751212. Its totient is φ = 643872.

The previous prime is 697523. The next prime is 697553. The reversal of 697541 is 145796.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 306916 + 390625 = 554^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 697541 - 2¹⁰ = 696517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 697498 and 697507.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697541.

It is not an unprimeable number, because it can be changed into a prime (697511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26816 + ... + 26841.

It is an arithmetic number, because the mean of its divisors is an integer number (187803).

2⁶⁹⁷⁵⁴¹ is an apocalyptic number.

It is an amenable number.

697541 is a deficient number, since it is larger than the sum of its proper divisors (53671).

697541 is a wasteful number, since it uses less digits than its factorization.

697541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53670.

The product of its digits is 7560, while the sum is 32.

The square root of 697541 is about 835.1892001217. The cubic root of 697541 is about 88.6863088625.

The spelling of 697541 in words is "six hundred ninety-seven thousand, five hundred forty-one".