3665750 has 64 divisors (see below), whose sum is σ = 7907328. Its totient is φ = 1260000.

The previous prime is 3665747. The next prime is 3665759. The reversal of 3665750 is 575663.

3665750 = T₃₈₆ + T₃₈₇ + ... + T₄₂₉.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85229 + ... + 85271.

It is an arithmetic number, because the mean of its divisors is an integer number (123552).

Almost surely, 2^3665750 is an apocalyptic number.

3665750 is an abundant number, since it is smaller than the sum of its proper divisors (4241578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3665750 is a wasteful number, since it uses less digits than its factorization.

3665750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 3665750 is about 1914.6148437741. The cubic root of 3665750 is about 154.1893157212.

It can be divided in two parts, 366 and 5750, that added together give a palindrome (6116).

The spelling of 3665750 in words is "three million, six hundred sixty-five thousand, seven hundred fifty".