398467663 has 12 divisors (see below), whose sum is σ = 454420008. Its totient is φ = 346488560.

The previous prime is 398467661. The next prime is 398467669. The reversal of 398467663 is 366764893.

It is not a de Polignac number, because 398467663 - 2¹ = 398467661 is a prime.

It is a super-4 number, since 4×398467663⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 398467663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398467661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28420 + ... + 40057.

It is an arithmetic number, because the mean of its divisors is an integer number (37868334).

Almost surely, 2^398467663 is an apocalyptic number.

398467663 is a deficient number, since it is larger than the sum of its proper divisors (55952345).

398467663 is a wasteful number, since it uses less digits than its factorization.

398467663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68534 (or 68511 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 52.

The square root of 398467663 is about 19961.6548161719. The cubic root of 398467663 is about 735.8642327696.

The spelling of 398467663 in words is "three hundred ninety-eight million, four hundred sixty-seven thousand, six hundred sixty-three".