697801 has 6 divisors (see below), whose sum is σ = 755790. Its totient is φ = 643968.

The previous prime is 697787. The next prime is 697819. The reversal of 697801 is 108796.

697801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 576 + 697225 = 24^2 + 835^2 .

It is not a de Polignac number, because 697801 - 2⁷ = 697673 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697801.

It is not an unprimeable number, because it can be changed into a prime (697831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1896 + ... + 2233.

It is an arithmetic number, because the mean of its divisors is an integer number (125965).

2⁶⁹⁷⁸⁰¹ is an apocalyptic number.

It is an amenable number.

697801 is a deficient number, since it is larger than the sum of its proper divisors (57989).

697801 is a wasteful number, since it uses less digits than its factorization.

697801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155 (or 4142 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 697801 is about 835.3448389737. The cubic root of 697801 is about 88.6973264113.

The spelling of 697801 in words is "six hundred ninety-seven thousand, eight hundred one".