398230523 has 4 divisors (see below), whose sum is σ = 411962640. Its totient is φ = 384498408.

The previous prime is 398230507. The next prime is 398230529. The reversal of 398230523 is 325032893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325032893 = 3461 ⋅93913.

It is a cyclic number.

It is not a de Polignac number, because 398230523 - 2⁴ = 398230507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398230529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6866015 + ... + 6866072.

It is an arithmetic number, because the mean of its divisors is an integer number (102990660).

Almost surely, 2^398230523 is an apocalyptic number.

398230523 is a deficient number, since it is larger than the sum of its proper divisors (13732117).

398230523 is a wasteful number, since it uses less digits than its factorization.

398230523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13732116.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 398230523 is about 19955.7140438522. The cubic root of 398230523 is about 735.7182255448.

The spelling of 398230523 in words is "three hundred ninety-eight million, two hundred thirty thousand, five hundred twenty-three".