4077765 has 12 divisors (see below), whose sum is σ = 7068204. Its totient is φ = 2174784.

The previous prime is 4077763. The next prime is 4077779. The reversal of 4077765 is 5677704.

It can be written as a sum of positive squares in 2 ways, for example, as 3218436 + 859329 = 1794^2 + 927^2 .

It is not a de Polignac number, because 4077765 - 2¹ = 4077763 is a prime.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4077763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45264 + ... + 45353.

It is an arithmetic number, because the mean of its divisors is an integer number (589017).

Almost surely, 2^4077765 is an apocalyptic number.

4077765 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4077765 is a deficient number, since it is larger than the sum of its proper divisors (2990439).

4077765 is a wasteful number, since it uses less digits than its factorization.

4077765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90628 (or 90625 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 4077765 is about 2019.3476669459. The cubic root of 4077765 is about 159.7622118843.

The spelling of 4077765 in words is "four million, seventy-seven thousand, seven hundred sixty-five".