691468 has 6 divisors (see below), whose sum is σ = 1210076. Its totient is φ = 345732.

The previous prime is 691463. The next prime is 691489. The reversal of 691468 is 864196.

It is not an unprimeable number, because it can be changed into a prime (691463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86430 + ... + 86437.

2⁶⁹¹⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

691468 is a deficient number, since it is larger than the sum of its proper divisors (518608).

691468 is a wasteful number, since it uses less digits than its factorization.

691468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172871 (or 172869 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 691468 is about 831.5455489629. The cubic root of 691468 is about 88.4281818107.

The spelling of 691468 in words is "six hundred ninety-one thousand, four hundred sixty-eight".