474259661 has 4 divisors (see below), whose sum is σ = 474385500. Its totient is φ = 474133824.

The previous prime is 474259651. The next prime is 474259663. The reversal of 474259661 is 166952474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 205922500 + 268337161 = 14350^2 + 16381^2 .

It is a cyclic number.

It is not a de Polignac number, because 474259661 - 2¹⁴ = 474243277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474259663) 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, 57086 + ... + 64863.

It is an arithmetic number, because the mean of its divisors is an integer number (118596375).

Almost surely, 2^474259661 is an apocalyptic number.

It is an amenable number.

474259661 is a deficient number, since it is larger than the sum of its proper divisors (125839).

474259661 is a wasteful number, since it uses less digits than its factorization.

474259661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125838.

The product of its digits is 362880, while the sum is 44.

The square root of 474259661 is about 21777.5035529787. The cubic root of 474259661 is about 779.8397988984.

The spelling of 474259661 in words is "four hundred seventy-four million, two hundred fifty-nine thousand, six hundred sixty-one".