3657274 has 4 divisors (see below), whose sum is σ = 5485914. Its totient is φ = 1828636.

The previous prime is 3657271. The next prime is 3657289. The reversal of 3657274 is 4727563.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2082249 + 1575025 = 1443^2 + 1255^2 .

It is a super-2 number, since 2×3657274² = 26751306222152, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁹ + 6⁸ + 5⁹ + 7⁴ + 2⁵ + 7⁴ + 4² .

It is not an unprimeable number, because it can be changed into a prime (3657271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914317 + ... + 914320.

Almost surely, 2^3657274 is an apocalyptic number.

3657274 is a deficient number, since it is larger than the sum of its proper divisors (1828640).

3657274 is a wasteful number, since it uses less digits than its factorization.

3657274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828639.

The product of its digits is 35280, while the sum is 34.

The square root of 3657274 is about 1912.4000627484. The cubic root of 3657274 is about 154.0703844229.

The spelling of 3657274 in words is "three million, six hundred fifty-seven thousand, two hundred seventy-four".