3685522 has 8 divisors (see below), whose sum is σ = 5559372. Its totient is φ = 1832400.

The previous prime is 3685519. The next prime is 3685541. The reversal of 3685522 is 2255863.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3381921 + 303601 = 1839^2 + 551^2 .

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

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, 4729 + ... + 5452.

Almost surely, 2^3685522 is an apocalyptic number.

3685522 is a deficient number, since it is larger than the sum of its proper divisors (1873850).

3685522 is a wasteful number, since it uses less digits than its factorization.

3685522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10364.

The product of its digits is 14400, while the sum is 31.

The square root of 3685522 is about 1919.7713405507. The cubic root of 3685522 is about 154.4660363895.

It can be divided in two parts, 36 and 85522, that added together give a palindrome (85558).

The spelling of 3685522 in words is "three million, six hundred eighty-five thousand, five hundred twenty-two".