7687387252 has 6 divisors (see below), whose sum is σ = 13452927698. Its totient is φ = 3843693624.

The previous prime is 7687387249. The next prime is 7687387259. The reversal of 7687387252 is 2527837867.

It can be written as a sum of positive squares in only one way, i.e., 4893841936 + 2793545316 = 69956^2 + 52854^2 .

It is a super-2 number, since 2×7687387252² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7687387193 and 7687387202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7687387259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960923403 + ... + 960923410.

Almost surely, 2^7687387252 is an apocalyptic number.

It is an amenable number.

7687387252 is a deficient number, since it is larger than the sum of its proper divisors (5765540446).

7687387252 is a wasteful number, since it uses less digits than its factorization.

7687387252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921846817 (or 1921846815 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 55.

The square root of 7687387252 is about 87677.7466179418. The cubic root of 7687387252 is about 1973.6020445977.

The spelling of 7687387252 in words is "seven billion, six hundred eighty-seven million, three hundred eighty-seven thousand, two hundred fifty-two".