398853651 has 16 divisors (see below), whose sum is σ = 610438400. Its totient is φ = 226918368.

The previous prime is 398853619. The next prime is 398853661. The reversal of 398853651 is 156358893.

It is not a de Polignac number, because 398853651 - 2⁵ = 398853619 is a prime.

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 398853651.

It is not an unprimeable number, because it can be changed into a prime (398853601) 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 15 ways as a sum of consecutive naturals, for example, 36661 + ... + 46278.

It is an arithmetic number, because the mean of its divisors is an integer number (38152400).

Almost surely, 2^398853651 is an apocalyptic number.

398853651 is a deficient number, since it is larger than the sum of its proper divisors (211584749).

398853651 is a wasteful number, since it uses less digits than its factorization.

398853651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83178.

The product of its digits is 777600, while the sum is 48.

The square root of 398853651 is about 19971.3207124617. The cubic root of 398853651 is about 736.1017619563.

The spelling of 398853651 in words is "three hundred ninety-eight million, eight hundred fifty-three thousand, six hundred fifty-one".