3218454769 has 4 divisors (see below), whose sum is σ = 3218653044. Its totient is φ = 3218256496.

The previous prime is 3218454763. The next prime is 3218454851. The reversal of 3218454769 is 9674548123.

It is a happy number.

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 2200079025 + 1018375744 = 46905^2 + 31912^2 .

It is a cyclic number.

It is not a de Polignac number, because 3218454769 - 2³ = 3218454761 is a prime.

It is a super-2 number, since 2×3218454769² = 20716902200197686722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3218454761) 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, 72382 + ... + 108055.

It is an arithmetic number, because the mean of its divisors is an integer number (804663261).

Almost surely, 2^3218454769 is an apocalyptic number.

It is an amenable number.

3218454769 is a deficient number, since it is larger than the sum of its proper divisors (198275).

3218454769 is a wasteful number, since it uses less digits than its factorization.

3218454769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198274.

The product of its digits is 1451520, while the sum is 49.

The square root of 3218454769 is about 56731.4266434399. The cubic root of 3218454769 is about 1476.4400023448.

The spelling of 3218454769 in words is "three billion, two hundred eighteen million, four hundred fifty-four thousand, seven hundred sixty-nine".