398599471 has 2 divisors, whose sum is σ = 398599472. Its totient is φ = 398599470.

The previous prime is 398599451. The next prime is 398599507. The reversal of 398599471 is 174995893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398599471 - 2²¹ = 396502319 is a prime.

It is a super-3 number, since 3×398599471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398599451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199299735 + 199299736.

It is an arithmetic number, because the mean of its divisors is an integer number (199299736).

Almost surely, 2^398599471 is an apocalyptic number.

398599471 is a deficient number, since it is larger than the sum of its proper divisors (1).

398599471 is an equidigital number, since it uses as much as digits as its factorization.

398599471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 55.

The square root of 398599471 is about 19964.9560730797. The cubic root of 398599471 is about 735.9453619795.

The spelling of 398599471 in words is "three hundred ninety-eight million, five hundred ninety-nine thousand, four hundred seventy-one".