4640679 has 8 divisors (see below), whose sum is σ = 6875120. Its totient is φ = 3093768.

The previous prime is 4640599. The next prime is 4640717. The reversal of 4640679 is 9760464.

4640679 is a `hidden beast` number, since 4 + 640 + 6 + 7 + 9 = 666.

It is not a de Polignac number, because 4640679 - 2⁸ = 4640423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85912 + ... + 85965.

It is an arithmetic number, because the mean of its divisors is an integer number (859390).

Almost surely, 2^4640679 is an apocalyptic number.

4640679 is a deficient number, since it is larger than the sum of its proper divisors (2234441).

4640679 is a wasteful number, since it uses less digits than its factorization.

4640679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171886 (or 171880 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 4640679 is about 2154.2235260065. The cubic root of 4640679 is about 166.7991537662.

The spelling of 4640679 in words is "four million, six hundred forty thousand, six hundred seventy-nine".