3507745 has 4 divisors (see below), whose sum is σ = 4209300. Its totient is φ = 2806192.

The previous prime is 3507739. The next prime is 3507809. The reversal of 3507745 is 5477053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5477053 = 1277 ⋅4289.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 2719201 = 888^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 3507745 - 2³ = 3507737 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350770 + ... + 350779.

It is an arithmetic number, because the mean of its divisors is an integer number (1052325).

Almost surely, 2^3507745 is an apocalyptic number.

It is an amenable number.

3507745 is a deficient number, since it is larger than the sum of its proper divisors (701555).

3507745 is an equidigital number, since it uses as much as digits as its factorization.

3507745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701554.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 3507745 is about 1872.8974878514. The cubic root of 3507745 is about 151.9413583808.

The spelling of 3507745 in words is "three million, five hundred seven thousand, seven hundred forty-five".