398425267 has 4 divisors (see below), whose sum is σ = 398994336. Its totient is φ = 397856200.

The previous prime is 398425259. The next prime is 398425273. The reversal of 398425267 is 762524893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398425267 - 2³ = 398425259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398425217) 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, 283483 + ... + 284884.

It is an arithmetic number, because the mean of its divisors is an integer number (99748584).

Almost surely, 2^398425267 is an apocalyptic number.

398425267 is a deficient number, since it is larger than the sum of its proper divisors (569069).

398425267 is an equidigital number, since it uses as much as digits as its factorization.

398425267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569068.

The product of its digits is 725760, while the sum is 46.

The square root of 398425267 is about 19960.5928519170. The cubic root of 398425267 is about 735.8381337830.

The spelling of 398425267 in words is "three hundred ninety-eight million, four hundred twenty-five thousand, two hundred sixty-seven".