393726 has 16 divisors (see below), whose sum is σ = 793728. Its totient is φ = 130200.

The previous prime is 393721. The next prime is 393727. The reversal of 393726 is 627393.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 393693 and 393702.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 393726.

It is not an unprimeable number, because it can be changed into a prime (393721) by changing a digit.

393726 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, 1111 + ... + 1421.

It is an arithmetic number, because the mean of its divisors is an integer number (49608).

2³⁹³⁷²⁶ is an apocalyptic number.

393726 is an abundant number, since it is smaller than the sum of its proper divisors (400002).

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

393726 is a wasteful number, since it uses less digits than its factorization.

393726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527.

The product of its digits is 6804, while the sum is 30.

The square root of 393726 is about 627.4758959514. The cubic root of 393726 is about 73.2933712482.

The spelling of 393726 in words is "three hundred ninety-three thousand, seven hundred twenty-six".