398794713 has 4 divisors (see below), whose sum is σ = 531726288. Its totient is φ = 265863140.

The previous prime is 398794673. The next prime is 398794729. The reversal of 398794713 is 317497893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 317497893 = 3 ⋅105832631.

It is a cyclic number.

It is not a de Polignac number, because 398794713 - 2²⁴ = 382017497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398794793) 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, 66465783 + ... + 66465788.

It is an arithmetic number, because the mean of its divisors is an integer number (132931572).

Almost surely, 2^398794713 is an apocalyptic number.

It is an amenable number.

398794713 is a deficient number, since it is larger than the sum of its proper divisors (132931575).

398794713 is a wasteful number, since it uses less digits than its factorization.

398794713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132931574.

The product of its digits is 1143072, while the sum is 51.

The square root of 398794713 is about 19969.8450920381. The cubic root of 398794713 is about 736.0655026227.

The spelling of 398794713 in words is "three hundred ninety-eight million, seven hundred ninety-four thousand, seven hundred thirteen".