396701923 has 4 divisors (see below), whose sum is σ = 398695600. Its totient is φ = 394708248.

The previous prime is 396701887. The next prime is 396701927. The reversal of 396701923 is 329107693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329107693 = 509 ⋅646577.

It is a cyclic number.

It is not a de Polignac number, because 396701923 - 2¹⁷ = 396570851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396701927) 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, 996540 + ... + 996937.

It is an arithmetic number, because the mean of its divisors is an integer number (99673900).

Almost surely, 2^396701923 is an apocalyptic number.

396701923 is a deficient number, since it is larger than the sum of its proper divisors (1993677).

396701923 is a wasteful number, since it uses less digits than its factorization.

396701923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993676.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 396701923 is about 19917.3774127017. The cubic root of 396701923 is about 734.7756718953.

The spelling of 396701923 in words is "three hundred ninety-six million, seven hundred one thousand, nine hundred twenty-three".