691348 has 12 divisors (see below), whose sum is σ = 1382752. Its totient is φ = 296280.

The previous prime is 691343. The next prime is 691349. The reversal of 691348 is 843196.

691348 is nontrivially palindromic in base 15.

691348 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (691343) by changing a digit.

691348 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12318 + ... + 12373.

2⁶⁹¹³⁴⁸ is an apocalyptic number.

It is an amenable number.

691348 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

691348 is a wasteful number, since it uses less digits than its factorization.

691348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24702 (or 24700 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 691348 is about 831.4733910355. The cubic root of 691348 is about 88.4230661265.

The spelling of 691348 in words is "six hundred ninety-one thousand, three hundred forty-eight".