697828 has 6 divisors (see below), whose sum is σ = 1221206. Its totient is φ = 348912.

The previous prime is 697819. The next prime is 697831. The reversal of 697828 is 828796.

697828 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 only one way, i.e., 459684 + 238144 = 678^2 + 488^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87225 + ... + 87232.

2⁶⁹⁷⁸²⁸ is an apocalyptic number.

It is an amenable number.

697828 is a deficient number, since it is larger than the sum of its proper divisors (523378).

697828 is a wasteful number, since it uses less digits than its factorization.

697828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174461 (or 174459 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 697828 is about 835.3609998079. The cubic root of 697828 is about 88.6984703845.

The spelling of 697828 in words is "six hundred ninety-seven thousand, eight hundred twenty-eight".