396923 has 4 divisors (see below), whose sum is σ = 410640. Its totient is φ = 383208.

The previous prime is 396919. The next prime is 396931. The reversal of 396923 is 329693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 396923 - 2² = 396919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396923.

It is not an unprimeable number, because it can be changed into a prime (396943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6815 + ... + 6872.

It is an arithmetic number, because the mean of its divisors is an integer number (102660).

2³⁹⁶⁹²³ is an apocalyptic number.

396923 is a deficient number, since it is larger than the sum of its proper divisors (13717).

396923 is a wasteful number, since it uses less digits than its factorization.

396923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13716.

The product of its digits is 8748, while the sum is 32.

The square root of 396923 is about 630.0182537038. The cubic root of 396923 is about 73.4912140299.

The spelling of 396923 in words is "three hundred ninety-six thousand, nine hundred twenty-three".