3187387652 has 6 divisors (see below), whose sum is σ = 5577928398. Its totient is φ = 1593693824.

The previous prime is 3187387639. The next prime is 3187387657. The reversal of 3187387652 is 2567837813.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2987278336 + 200109316 = 54656^2 + 14146^2 .

It is a super-4 number, since 4×3187387652⁴ (a number of 39 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3187387652.

It is not an unprimeable number, because it can be changed into a prime (3187387657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398423453 + ... + 398423460.

It is an arithmetic number, because the mean of its divisors is an integer number (929654733).

Almost surely, 2^3187387652 is an apocalyptic number.

It is an amenable number.

3187387652 is a deficient number, since it is larger than the sum of its proper divisors (2390540746).

3187387652 is a wasteful number, since it uses less digits than its factorization.

3187387652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796846917 (or 796846915 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 3187387652 is about 56456.9539738020. The cubic root of 3187387652 is about 1471.6740383952.

The spelling of 3187387652 in words is "three billion, one hundred eighty-seven million, three hundred eighty-seven thousand, six hundred fifty-two".