4004765 has 4 divisors (see below), whose sum is σ = 4805724. Its totient is φ = 3203808.

The previous prime is 4004753. The next prime is 4004773. The reversal of 4004765 is 5674004.

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 481636 + 3523129 = 694^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 4004765 - 2⁸ = 4004509 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400472 + ... + 400481.

It is an arithmetic number, because the mean of its divisors is an integer number (1201431).

Almost surely, 2^4004765 is an apocalyptic number.

It is an amenable number.

4004765 is a deficient number, since it is larger than the sum of its proper divisors (800959).

4004765 is an equidigital number, since it uses as much as digits as its factorization.

4004765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800958.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 4004765 is about 2001.1908954420. The cubic root of 4004765 is about 158.8031132341.

Adding to 4004765 its reverse (5674004), we get a palindrome (9678769).

The spelling of 4004765 in words is "four million, four thousand, seven hundred sixty-five".