398613 has 16 divisors (see below), whose sum is σ = 570240. Its totient is φ = 247104.

The previous prime is 398611. The next prime is 398621. The reversal of 398613 is 316893.

It is not a de Polignac number, because 398613 - 2¹ = 398611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3603 + ... + 3711.

It is an arithmetic number, because the mean of its divisors is an integer number (35640).

2³⁹⁸⁶¹³ is an apocalyptic number.

It is an amenable number.

398613 is a deficient number, since it is larger than the sum of its proper divisors (171627).

398613 is a wasteful number, since it uses less digits than its factorization.

398613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188.

The product of its digits is 3888, while the sum is 30.

The square root of 398613 is about 631.3580600578. The cubic root of 398613 is about 73.5953688209.

The spelling of 398613 in words is "three hundred ninety-eight thousand, six hundred thirteen".