4640769 has 24 divisors (see below), whose sum is σ = 8066240. Its totient is φ = 2511648.

The previous prime is 4640761. The next prime is 4640777. The reversal of 4640769 is 9670464.

4640769 is a `hidden beast` number, since 4 + 640 + 7 + 6 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (4640761) and next prime (4640777).

It is not a de Polignac number, because 4640769 - 2³ = 4640761 is a prime.

It is a super-2 number, since 2×4640769² = 43073473822722, which contains 22 as substring.

4640769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4640761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 742 + ... + 3135.

It is a Proth number, since it is equal to 1133 ⋅ 2¹² + 1 and 1133 < 2¹².

Almost surely, 2^4640769 is an apocalyptic number.

It is an amenable number.

4640769 is a deficient number, since it is larger than the sum of its proper divisors (3425471).

4640769 is a wasteful number, since it uses less digits than its factorization.

4640769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909 (or 3906 counting only the distinct ones).

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

The square root of 4640769 is about 2154.2444151024. The cubic root of 4640769 is about 166.8002320443.

The spelling of 4640769 in words is "four million, six hundred forty thousand, seven hundred sixty-nine".