398298583 has 2 divisors, whose sum is σ = 398298584. Its totient is φ = 398298582.

The previous prime is 398298517. The next prime is 398298611. The reversal of 398298583 is 385892893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 398298583 - 2⁹ = 398298071 is a prime.

It is a super-2 number, since 2×398298583² = 317283522439615778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398298503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199149291 + 199149292.

It is an arithmetic number, because the mean of its divisors is an integer number (199149292).

Almost surely, 2^398298583 is an apocalyptic number.

398298583 is a deficient number, since it is larger than the sum of its proper divisors (1).

398298583 is an equidigital number, since it uses as much as digits as its factorization.

398298583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 55.

The square root of 398298583 is about 19957.4192469868. The cubic root of 398298583 is about 735.7601360524.

The spelling of 398298583 in words is "three hundred ninety-eight million, two hundred ninety-eight thousand, five hundred eighty-three".