7687441 has 4 divisors (see below), whose sum is σ = 7713972. Its totient is φ = 7660912.

The previous prime is 7687439. The next prime is 7687447. The reversal of 7687441 is 1447867.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 3294225 = 2096^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 7687441 - 2¹ = 7687439 is a prime.

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 7687441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7687447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12826 + ... + 13411.

It is an arithmetic number, because the mean of its divisors is an integer number (1928493).

Almost surely, 2^7687441 is an apocalyptic number.

It is an amenable number.

7687441 is a deficient number, since it is larger than the sum of its proper divisors (26531).

7687441 is a wasteful number, since it uses less digits than its factorization.

7687441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26530.

The product of its digits is 37632, while the sum is 37.

The square root of 7687441 is about 2772.6234868803. The cubic root of 7687441 is about 197.3606644206.

It can be divided in two parts, 7687 and 441, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 7687441 in words is "seven million, six hundred eighty-seven thousand, four hundred forty-one".