4742639 has 8 divisors (see below), whose sum is σ = 5198160. Its totient is φ = 4291200.

The previous prime is 4742611. The next prime is 4742641. The reversal of 4742639 is 9362474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4742639 - 2⁸ = 4742383 is a prime.

It is a d-powerful number, because it can be written as 4³ + 7⁵ + 4¹¹ + 2³ + 6 + 3¹² + 9 .

It is a junction number, because it is equal to n+sod(n) for n = 4742599 and 4742608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4742239) 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, 1757 + ... + 3545.

It is an arithmetic number, because the mean of its divisors is an integer number (649770).

Almost surely, 2^4742639 is an apocalyptic number.

4742639 is a deficient number, since it is larger than the sum of its proper divisors (455521).

4742639 is a wasteful number, since it uses less digits than its factorization.

4742639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041.

The product of its digits is 36288, while the sum is 35.

The square root of 4742639 is about 2177.7600877966. The cubic root of 4742639 is about 168.0118921098.

It can be divided in two parts, 474 and 2639, that added together give a palindrome (3113).

The spelling of 4742639 in words is "four million, seven hundred forty-two thousand, six hundred thirty-nine".