398294547 has 32 divisors (see below), whose sum is σ = 644101632. Its totient is φ = 213717504.

The previous prime is 398294543. The next prime is 398294551. The reversal of 398294547 is 745492893.

It is an interprime number because it is at equal distance from previous prime (398294543) and next prime (398294551).

It is not a de Polignac number, because 398294547 - 2² = 398294543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 398294547.

It is not an unprimeable number, because it can be changed into a prime (398294543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197848 + ... + 199850.

It is an arithmetic number, because the mean of its divisors is an integer number (20128176).

Almost surely, 2^398294547 is an apocalyptic number.

398294547 is a deficient number, since it is larger than the sum of its proper divisors (245807085).

398294547 is a wasteful number, since it uses less digits than its factorization.

398294547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587.

The product of its digits is 2177280, while the sum is 51.

The square root of 398294547 is about 19957.3181314524. The cubic root of 398294547 is about 735.7576508666.

The spelling of 398294547 in words is "three hundred ninety-eight million, two hundred ninety-four thousand, five hundred forty-seven".