3865552 has 10 divisors (see below), whose sum is σ = 7489538. Its totient is φ = 1932768.

The previous prime is 3865529. The next prime is 3865553. The reversal of 3865552 is 2555683.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2005056 + 1860496 = 1416^2 + 1364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120783 + ... + 120814.

Almost surely, 2^3865552 is an apocalyptic number.

It is an amenable number.

3865552 is a deficient number, since it is larger than the sum of its proper divisors (3623986).

3865552 is a wasteful number, since it uses less digits than its factorization.

3865552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241605 (or 241599 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 3865552 is about 1966.1007095263. The cubic root of 3865552 is about 156.9412738290.

The spelling of 3865552 in words is "three million, eight hundred sixty-five thousand, five hundred fifty-two".