7788045 has 16 divisors (see below), whose sum is σ = 12539520. Its totient is φ = 4127424.

The previous prime is 7788029. The next prime is 7788047. The reversal of 7788045 is 5408877.

7788045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7788045 - 2⁴ = 7788029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7787994 and 7788012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7788047) 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 15 ways as a sum of consecutive naturals, for example, 951 + ... + 4059.

It is an arithmetic number, because the mean of its divisors is an integer number (783720).

Almost surely, 2^7788045 is an apocalyptic number.

It is an amenable number.

7788045 is a deficient number, since it is larger than the sum of its proper divisors (4751475).

7788045 is a wasteful number, since it uses less digits than its factorization.

7788045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 7788045 is about 2790.7068996941. The cubic root of 7788045 is about 198.2178756640.

The spelling of 7788045 in words is "seven million, seven hundred eighty-eight thousand, forty-five".