3390785 has 4 divisors (see below), whose sum is σ = 4068948. Its totient is φ = 2712624.

The previous prime is 3390763. The next prime is 3390787. The reversal of 3390785 is 5870933.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2408704 + 982081 = 1552^2 + 991^2 .

It is a cyclic number.

It is not a de Polignac number, because 3390785 - 2⁸ = 3390529 is a prime.

It is a super-2 number, since 2×3390785² = 22994845832450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3390787) 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, 339074 + ... + 339083.

It is an arithmetic number, because the mean of its divisors is an integer number (1017237).

Almost surely, 2^3390785 is an apocalyptic number.

It is an amenable number.

3390785 is a deficient number, since it is larger than the sum of its proper divisors (678163).

3390785 is an equidigital number, since it uses as much as digits as its factorization.

3390785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678162.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 3390785 is about 1841.4084283504. The cubic root of 3390785 is about 150.2334882183.

The spelling of 3390785 in words is "three million, three hundred ninety thousand, seven hundred eighty-five".