3651562 has 4 divisors (see below), whose sum is σ = 5477346. Its totient is φ = 1825780.

The previous prime is 3651559. The next prime is 3651607. The reversal of 3651562 is 2651563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2651563 = 397 ⋅6679.

It can be written as a sum of positive squares in only one way, i.e., 2399401 + 1252161 = 1549^2 + 1119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3651562.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912889 + ... + 912892.

Almost surely, 2^3651562 is an apocalyptic number.

3651562 is a deficient number, since it is larger than the sum of its proper divisors (1825784).

3651562 is a wasteful number, since it uses less digits than its factorization.

3651562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825783.

The product of its digits is 5400, while the sum is 28.

The square root of 3651562 is about 1910.9060678118. The cubic root of 3651562 is about 153.9901326112.

Subtracting from 3651562 its reverse (2651563), we obtain a palindrome (999999).

The spelling of 3651562 in words is "three million, six hundred fifty-one thousand, five hundred sixty-two".