398413773 has 12 divisors (see below), whose sum is σ = 586345500. Its totient is φ = 260597376.

The previous prime is 398413759. The next prime is 398413789. The reversal of 398413773 is 377314893.

It can be written as a sum of positive squares in 2 ways, for example, as 187060329 + 211353444 = 13677^2 + 14538^2 .

It is not a de Polignac number, because 398413773 - 2⁶ = 398413709 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398413723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417148 + ... + 418101.

It is an arithmetic number, because the mean of its divisors is an integer number (48862125).

Almost surely, 2^398413773 is an apocalyptic number.

It is an amenable number.

398413773 is a deficient number, since it is larger than the sum of its proper divisors (187931727).

398413773 is a wasteful number, since it uses less digits than its factorization.

398413773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835308 (or 835305 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 398413773 is about 19960.3049325405. The cubic root of 398413773 is about 735.8310577552.

The spelling of 398413773 in words is "three hundred ninety-eight million, four hundred thirteen thousand, seven hundred seventy-three".