3457684561 has 4 divisors (see below), whose sum is σ = 3501452800. Its totient is φ = 3413916324.

The previous prime is 3457684547. The next prime is 3457684583. The reversal of 3457684561 is 1654867543.

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 3457684561 - 2¹⁵ = 3457651793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3457687561) 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, 21884001 + ... + 21884158.

It is an arithmetic number, because the mean of its divisors is an integer number (875363200).

Almost surely, 2^3457684561 is an apocalyptic number.

It is an amenable number.

3457684561 is a deficient number, since it is larger than the sum of its proper divisors (43768239).

3457684561 is an equidigital number, since it uses as much as digits as its factorization.

3457684561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43768238.

The product of its digits is 2419200, while the sum is 49.

The square root of 3457684561 is about 58802.0795635665. The cubic root of 3457684561 is about 1512.1508697250.

The spelling of 3457684561 in words is "three billion, four hundred fifty-seven million, six hundred eighty-four thousand, five hundred sixty-one".