3662531 has 4 divisors (see below), whose sum is σ = 3877992. Its totient is φ = 3447072.

The previous prime is 3662521. The next prime is 3662537. The reversal of 3662531 is 1352663.

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

It is a cyclic number.

It is not a de Polignac number, because 3662531 - 2⁶ = 3662467 is a prime.

It is a super-3 number, since 3×3662531³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3662531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3662537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107705 + ... + 107738.

It is an arithmetic number, because the mean of its divisors is an integer number (969498).

Almost surely, 2^3662531 is an apocalyptic number.

3662531 is a deficient number, since it is larger than the sum of its proper divisors (215461).

3662531 is a wasteful number, since it uses less digits than its factorization.

3662531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215460.

The product of its digits is 3240, while the sum is 26.

The square root of 3662531 is about 1913.7740200975. The cubic root of 3662531 is about 154.1441698201.

The spelling of 3662531 in words is "three million, six hundred sixty-two thousand, five hundred thirty-one".