474487669 has 4 divisors (see below), whose sum is σ = 477672300. Its totient is φ = 471303040.

The previous prime is 474487609. The next prime is 474487687. The reversal of 474487669 is 966784474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 966784474 = 2 ⋅483392237.

It can be written as a sum of positive squares in 2 ways, for example, as 270997444 + 203490225 = 16462^2 + 14265^2 .

It is a cyclic number.

It is not a de Polignac number, because 474487669 - 2¹¹ = 474485621 is a prime.

It is a super-3 number, since 3×474487669³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474487609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1592092 + ... + 1592389.

It is an arithmetic number, because the mean of its divisors is an integer number (119418075).

Almost surely, 2^474487669 is an apocalyptic number.

It is an amenable number.

474487669 is a deficient number, since it is larger than the sum of its proper divisors (3184631).

474487669 is a wasteful number, since it uses less digits than its factorization.

474487669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184630.

The product of its digits is 8128512, while the sum is 55.

The square root of 474487669 is about 21782.7378674032. The cubic root of 474487669 is about 779.9647524068.

The spelling of 474487669 in words is "four hundred seventy-four million, four hundred eighty-seven thousand, six hundred sixty-nine".