474861389 has 4 divisors (see below), whose sum is σ = 475234524. Its totient is φ = 474488256.

The previous prime is 474861383. The next prime is 474861421. The reversal of 474861389 is 983168474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 983168474 = 2 ⋅491584237.

It can be written as a sum of positive squares in 2 ways, for example, as 355134025 + 119727364 = 18845^2 + 10942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474861389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474861383) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 184652 + ... + 187205.

It is an arithmetic number, because the mean of its divisors is an integer number (118808631).

Almost surely, 2^474861389 is an apocalyptic number.

It is an amenable number.

474861389 is a deficient number, since it is larger than the sum of its proper divisors (373135).

474861389 is a wasteful number, since it uses less digits than its factorization.

474861389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373134.

The product of its digits is 1161216, while the sum is 50.

The square root of 474861389 is about 21791.3145312530. The cubic root of 474861389 is about 780.1694728183.

The spelling of 474861389 in words is "four hundred seventy-four million, eight hundred sixty-one thousand, three hundred eighty-nine".