691342 has 8 divisors (see below), whose sum is σ = 1062432. Its totient is φ = 337200.

The previous prime is 691337. The next prime is 691343. The reversal of 691342 is 243196.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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

691342 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, 4134 + ... + 4297.

It is an arithmetic number, because the mean of its divisors is an integer number (132804).

2⁶⁹¹³⁴² is an apocalyptic number.

691342 is a deficient number, since it is larger than the sum of its proper divisors (371090).

691342 is a wasteful number, since it uses less digits than its factorization.

691342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474.

The product of its digits is 1296, while the sum is 25.

The square root of 691342 is about 831.4697829747. The cubic root of 691342 is about 88.4228103268.

The spelling of 691342 in words is "six hundred ninety-one thousand, three hundred forty-two".