3508745 has 8 divisors (see below), whose sum is σ = 4268616. Its totient is φ = 2768256.

The previous prime is 3508741. The next prime is 3508753. The reversal of 3508745 is 5478053.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1517824 + 1990921 = 1232^2 + 1411^2 .

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 3508745 - 2² = 3508741 is a prime.

It is a super-2 number, since 2×3508745² = 24622582950050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3508741) 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, 4442 + ... + 5171.

It is an arithmetic number, because the mean of its divisors is an integer number (533577).

Almost surely, 2^3508745 is an apocalyptic number.

It is an amenable number.

3508745 is a deficient number, since it is larger than the sum of its proper divisors (759871).

3508745 is an equidigital number, since it uses as much as digits as its factorization.

3508745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9691.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 3508745 is about 1873.1644348535. The cubic root of 3508745 is about 151.9557956638.

The spelling of 3508745 in words is "three million, five hundred eight thousand, seven hundred forty-five".