493690 has 8 divisors (see below), whose sum is σ = 888660. Its totient is φ = 197472.

The previous prime is 493657. The next prime is 493693. The reversal of 493690 is 96394.

It can be written as a sum of positive squares in 2 ways, for example, as 463761 + 29929 = 681^2 + 173^2 .

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

It is a super-2 number, since 2×493690² = 487459632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (493693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24675 + ... + 24694.

2⁴⁹³⁶⁹⁰ is an apocalyptic number.

493690 is a deficient number, since it is larger than the sum of its proper divisors (394970).

493690 is a wasteful number, since it uses less digits than its factorization.

493690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49376.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 493690 is about 702.6307707466. The cubic root of 493690 is about 79.0347547769.

The spelling of 493690 in words is "four hundred ninety-three thousand, six hundred ninety".