398782473 has 32 divisors (see below), whose sum is σ = 555641856. Its totient is φ = 254227008.

The previous prime is 398782427. The next prime is 398782519. The reversal of 398782473 is 374287893.

It is an interprime number because it is at equal distance from previous prime (398782427) and next prime (398782519).

It is not a de Polignac number, because 398782473 - 2⁶ = 398782409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398782273) 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 31 ways as a sum of consecutive naturals, for example, 2305015 + ... + 2305187.

It is an arithmetic number, because the mean of its divisors is an integer number (17363808).

Almost surely, 2^398782473 is an apocalyptic number.

It is an amenable number.

398782473 is a deficient number, since it is larger than the sum of its proper divisors (156859383).

398782473 is a wasteful number, since it uses less digits than its factorization.

398782473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its digits is 2032128, while the sum is 51.

The square root of 398782473 is about 19969.5386276198. The cubic root of 398782473 is about 736.0579719863.

The spelling of 398782473 in words is "three hundred ninety-eight million, seven hundred eighty-two thousand, four hundred seventy-three".