4009775 has 24 divisors (see below), whose sum is σ = 6201984. Its totient is φ = 2498400.

The previous prime is 4009769. The next prime is 4009777. The reversal of 4009775 is 5779004.

It is a de Polignac number, because none of the positive numbers 2^k-4009775 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 884 + ... + 2966.

It is an arithmetic number, because the mean of its divisors is an integer number (258416).

Almost surely, 2^4009775 is an apocalyptic number.

4009775 is a deficient number, since it is larger than the sum of its proper divisors (2192209).

4009775 is a wasteful number, since it uses less digits than its factorization.

4009775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 4009775 is about 2002.4422588429. The cubic root of 4009775 is about 158.8693070523.

The spelling of 4009775 in words is "four million, nine thousand, seven hundred seventy-five".