3705285 has 16 divisors (see below), whose sum is σ = 6240960. Its totient is φ = 1872000.

The previous prime is 3705281. The next prime is 3705287. The reversal of 3705285 is 5825073.

3705285 = T₆₁₅ + T₆₁₆ + ... + T₆₃₃.

It is a happy number.

It is not a de Polignac number, because 3705285 - 2² = 3705281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3705281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6216 + ... + 6785.

It is an arithmetic number, because the mean of its divisors is an integer number (390060).

Almost surely, 2^3705285 is an apocalyptic number.

It is an amenable number.

3705285 is a deficient number, since it is larger than the sum of its proper divisors (2535675).

3705285 is a wasteful number, since it uses less digits than its factorization.

3705285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13028.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 3705285 is about 1924.9116862859. The cubic root of 3705285 is about 154.7416438358.

The spelling of 3705285 in words is "three million, seven hundred five thousand, two hundred eighty-five".