693642 has 16 divisors (see below), whose sum is σ = 1396800. Its totient is φ = 229632.

The previous prime is 693629. The next prime is 693659. The reversal of 693642 is 246396.

693642 is nontrivially palindromic in base 7.

It is a super-2 number, since 2×693642² = 962278448328, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 693642.

It is an unprimeable number.

693642 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 7 ways as a sum of consecutive naturals, for example, 859 + ... + 1457.

It is an arithmetic number, because the mean of its divisors is an integer number (87300).

2⁶⁹³⁶⁴² is an apocalyptic number.

693642 is an abundant number, since it is smaller than the sum of its proper divisors (703158).

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

693642 is a wasteful number, since it uses less digits than its factorization.

693642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797.

The product of its digits is 7776, while the sum is 30.

The square root of 693642 is about 832.8517275002. The cubic root of 693642 is about 88.5207586403.

The spelling of 693642 in words is "six hundred ninety-three thousand, six hundred forty-two".