4297639 has 4 divisors (see below), whose sum is σ = 4301920. Its totient is φ = 4293360.

The previous prime is 4297637. The next prime is 4297649. The reversal of 4297639 is 9367924.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4297639 - 2¹ = 4297637 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4297637) 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 3 ways as a sum of consecutive naturals, for example, 274 + ... + 2944.

It is an arithmetic number, because the mean of its divisors is an integer number (1075480).

Almost surely, 2^4297639 is an apocalyptic number.

4297639 is a deficient number, since it is larger than the sum of its proper divisors (4281).

4297639 is a wasteful number, since it uses less digits than its factorization.

4297639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280.

The product of its digits is 81648, while the sum is 40.

The square root of 4297639 is about 2073.0747695151. The cubic root of 4297639 is about 162.5835656974.

The spelling of 4297639 in words is "four million, two hundred ninety-seven thousand, six hundred thirty-nine".