396938 has 4 divisors (see below), whose sum is σ = 595410. Its totient is φ = 198468.

The previous prime is 396937. The next prime is 396943. The reversal of 396938 is 839693.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 332929 + 64009 = 577^2 + 253^2 .

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (396931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99233 + ... + 99236.

2³⁹⁶⁹³⁸ is an apocalyptic number.

396938 is a deficient number, since it is larger than the sum of its proper divisors (198472).

396938 is a wasteful number, since it uses less digits than its factorization.

396938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198471.

The product of its digits is 34992, while the sum is 38.

The square root of 396938 is about 630.0301580083. The cubic root of 396938 is about 73.4921397799.

Subtracting from 396938 its sum of digits (38), we obtain a square (396900 = 630²).

The spelling of 396938 in words is "three hundred ninety-six thousand, nine hundred thirty-eight".