393707 has 4 divisors (see below), whose sum is σ = 400440. Its totient is φ = 386976.

The previous prime is 393697. The next prime is 393709. The reversal of 393707 is 707393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707393 = 43 ⋅16451.

It is a cyclic number.

It is not a de Polignac number, because 393707 - 2⁸ = 393451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 393707.

It is not an unprimeable number, because it can be changed into a prime (393709) 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, 3278 + ... + 3395.

It is an arithmetic number, because the mean of its divisors is an integer number (100110).

2³⁹³⁷⁰⁷ is an apocalyptic number.

393707 is a deficient number, since it is larger than the sum of its proper divisors (6733).

393707 is an equidigital number, since it uses as much as digits as its factorization.

393707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732.

The product of its (nonzero) digits is 3969, while the sum is 29.

The square root of 393707 is about 627.4607557449. The cubic root of 393707 is about 73.2921922587.

The spelling of 393707 in words is "three hundred ninety-three thousand, seven hundred seven".