393922 has 4 divisors (see below), whose sum is σ = 590886. Its totient is φ = 196960.

The previous prime is 393919. The next prime is 393929. The reversal of 393922 is 229393.

It is a happy number.

393922 is nontrivially palindromic in base 15.

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., 385641 + 8281 = 621^2 + 91^2 .

It is not an unprimeable number, because it can be changed into a prime (393929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98479 + ... + 98482.

2³⁹³⁹²² is an apocalyptic number.

393922 is a deficient number, since it is larger than the sum of its proper divisors (196964).

393922 is a wasteful number, since it uses less digits than its factorization.

393922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196963.

The product of its digits is 2916, while the sum is 28.

The square root of 393922 is about 627.6320578173. The cubic root of 393922 is about 73.3055312425.

The spelling of 393922 in words is "three hundred ninety-three thousand, nine hundred twenty-two".