398247495 has 16 divisors (see below), whose sum is σ = 637461600. Its totient is φ = 212310144.

The previous prime is 398247469. The next prime is 398247503. The reversal of 398247495 is 594742893.

It is not a de Polignac number, because 398247495 - 2⁶ = 398247431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48981 + ... + 56529.

It is an arithmetic number, because the mean of its divisors is an integer number (39841350).

Almost surely, 2^398247495 is an apocalyptic number.

398247495 is a deficient number, since it is larger than the sum of its proper divisors (239214105).

398247495 is a wasteful number, since it uses less digits than its factorization.

398247495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11074.

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

The square root of 398247495 is about 19956.1392809331. The cubic root of 398247495 is about 735.7286771397.

The spelling of 398247495 in words is "three hundred ninety-eight million, two hundred forty-seven thousand, four hundred ninety-five".