398467659 has 8 divisors (see below), whose sum is σ = 532553872. Its totient is φ = 265013280.

The previous prime is 398467603. The next prime is 398467661. The reversal of 398467659 is 956764893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 398467659 - 2¹² = 398463563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 398467599 and 398467608.

It is not an unprimeable number, because it can be changed into a prime (398467669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156484 + ... + 159009.

It is an arithmetic number, because the mean of its divisors is an integer number (66569234).

Almost surely, 2^398467659 is an apocalyptic number.

398467659 is a deficient number, since it is larger than the sum of its proper divisors (134086213).

398467659 is a wasteful number, since it uses less digits than its factorization.

398467659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315917.

The product of its digits is 9797760, while the sum is 57.

The square root of 398467659 is about 19961.6547159798. The cubic root of 398467659 is about 735.8642303072.

The spelling of 398467659 in words is "three hundred ninety-eight million, four hundred sixty-seven thousand, six hundred fifty-nine".