4797639 has 72 divisors (see below), whose sum is σ = 9389952. Its totient is φ = 2328480.

The previous prime is 4797631. The next prime is 4797643. The reversal of 4797639 is 9367974.

4797639 is a `hidden beast` number, since 4 + 7 + 9 + 7 + 639 = 666.

It is not a de Polignac number, because 4797639 - 2³ = 4797631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4797594 and 4797603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4797631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 111552 + ... + 111594.

It is an arithmetic number, because the mean of its divisors is an integer number (130416).

Almost surely, 2^4797639 is an apocalyptic number.

4797639 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

4797639 is a deficient number, since it is larger than the sum of its proper divisors (4592313).

4797639 is a wasteful number, since it uses less digits than its factorization.

4797639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 87 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 4797639 is about 2190.3513416801. The cubic root of 4797639 is about 168.6588709616.

It can be divided in two parts, 479 and 7639, that added together give a palindrome (8118).

The spelling of 4797639 in words is "four million, seven hundred ninety-seven thousand, six hundred thirty-nine".