3457561 has 8 divisors (see below), whose sum is σ = 3567240. Its totient is φ = 3349632.

The previous prime is 3457549. The next prime is 3457591. The reversal of 3457561 is 1657543.

It can be written as a sum of positive squares in 4 ways, for example, as 1299600 + 2157961 = 1140^2 + 1469^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3457561 - 2⁹ = 3457049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3457591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4351 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (445905).

Almost surely, 2^3457561 is an apocalyptic number.

It is an amenable number.

3457561 is a deficient number, since it is larger than the sum of its proper divisors (109679).

3457561 is an equidigital number, since it uses as much as digits as its factorization.

3457561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its digits is 12600, while the sum is 31.

The square root of 3457561 is about 1859.4518009349. The cubic root of 3457561 is about 151.2132857180.

The spelling of 3457561 in words is "three million, four hundred fifty-seven thousand, five hundred sixty-one".