396458723 has 4 divisors (see below), whose sum is σ = 397539360. Its totient is φ = 395378088.

The previous prime is 396458651. The next prime is 396458747. The reversal of 396458723 is 327854693.

It is a happy number.

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 396458723 - 2⁸ = 396458467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396457723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539768 + ... + 540501.

It is an arithmetic number, because the mean of its divisors is an integer number (99384840).

Almost surely, 2^396458723 is an apocalyptic number.

396458723 is a deficient number, since it is larger than the sum of its proper divisors (1080637).

396458723 is a wasteful number, since it uses less digits than its factorization.

396458723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080636.

The product of its digits is 1088640, while the sum is 47.

The square root of 396458723 is about 19911.2712552464. The cubic root of 396458723 is about 734.6254886279.

The spelling of 396458723 in words is "three hundred ninety-six million, four hundred fifty-eight thousand, seven hundred twenty-three".