3453347785 has 8 divisors (see below), whose sum is σ = 4387783176. Its totient is φ = 2600167680.

The previous prime is 3453347749. The next prime is 3453347797. The reversal of 3453347785 is 5877433543.

It can be written as a sum of positive squares in 4 ways, for example, as 36711481 + 3416636304 = 6059^2 + 58452^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3453347785 - 2⁹ = 3453347273 is a prime.

It is a super-2 number, since 2×3453347785² = 23851221848328812450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20313726 + ... + 20313895.

It is an arithmetic number, because the mean of its divisors is an integer number (548472897).

Almost surely, 2^3453347785 is an apocalyptic number.

It is an amenable number.

3453347785 is a deficient number, since it is larger than the sum of its proper divisors (934435391).

3453347785 is a wasteful number, since it uses less digits than its factorization.

3453347785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40627643.

The product of its digits is 4233600, while the sum is 49.

The square root of 3453347785 is about 58765.1919506777. The cubic root of 3453347785 is about 1511.5184037773.

The spelling of 3453347785 in words is "three billion, four hundred fifty-three million, three hundred forty-seven thousand, seven hundred eighty-five".