474279389 has 4 divisors (see below), whose sum is σ = 494900256. Its totient is φ = 453658524.

The previous prime is 474279371. The next prime is 474279391. The reversal of 474279389 is 983972474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 474279389 - 2²⁸ = 205843933 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 474279389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474279329) 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, 10310399 + ... + 10310444.

It is an arithmetic number, because the mean of its divisors is an integer number (123725064).

Almost surely, 2^474279389 is an apocalyptic number.

It is an amenable number.

474279389 is a deficient number, since it is larger than the sum of its proper divisors (20620867).

474279389 is a wasteful number, since it uses less digits than its factorization.

474279389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20620866.

The product of its digits is 3048192, while the sum is 53.

The square root of 474279389 is about 21777.9564927474. The cubic root of 474279389 is about 779.8506118683.

The spelling of 474279389 in words is "four hundred seventy-four million, two hundred seventy-nine thousand, three hundred eighty-nine".