3537645 has 16 divisors (see below), whose sum is σ = 5695872. Its totient is φ = 1874880.

The previous prime is 3537641. The next prime is 3537647. The reversal of 3537645 is 5467353.

It is not a de Polignac number, because 3537645 - 2² = 3537641 is a prime.

It is a super-3 number, since 3×3537645³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 3⁶ + 5⁷ + 3¹¹ + 7 + 6⁷ + 4¹⁰ + 5⁹ .

3537645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3537641) 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, 2064 + ... + 3366.

It is an arithmetic number, because the mean of its divisors is an integer number (355992).

Almost surely, 2^3537645 is an apocalyptic number.

It is an amenable number.

3537645 is a deficient number, since it is larger than the sum of its proper divisors (2158227).

3537645 is a wasteful number, since it uses less digits than its factorization.

3537645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492.

The product of its digits is 37800, while the sum is 33.

The square root of 3537645 is about 1880.8628339143. The cubic root of 3537645 is about 152.3718532901.

The spelling of 3537645 in words is "three million, five hundred thirty-seven thousand, six hundred forty-five".