4640779 has 32 divisors (see below), whose sum is σ = 6096384. Its totient is φ = 3463680.

The previous prime is 4640777. The next prime is 4640789. The reversal of 4640779 is 9770464.

It is not a de Polignac number, because 4640779 - 2¹ = 4640777 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4640777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55872 + ... + 55954.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

Almost surely, 2^4640779 is an apocalyptic number.

4640779 is a deficient number, since it is larger than the sum of its proper divisors (1455605).

4640779 is a wasteful number, since it uses less digits than its factorization.

4640779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 4640779 is about 2154.2467361006. The cubic root of 4640779 is about 166.8003518521.

The spelling of 4640779 in words is "four million, six hundred forty thousand, seven hundred seventy-nine".