4245637 has 4 divisors (see below), whose sum is σ = 4631616. Its totient is φ = 3859660.

The previous prime is 4245623. The next prime is 4245643. The reversal of 4245637 is 7365424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4245637 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁶ + 2¹⁵ + 4¹¹ + 5³ + 6⁵ + 3⁸ + 7 .

4245637 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4245599 and 4245608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245617) 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 3 ways as a sum of consecutive naturals, for example, 192973 + ... + 192994.

It is an arithmetic number, because the mean of its divisors is an integer number (1157904).

Almost surely, 2^4245637 is an apocalyptic number.

It is an amenable number.

4245637 is a deficient number, since it is larger than the sum of its proper divisors (385979).

4245637 is a wasteful number, since it uses less digits than its factorization.

4245637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385978.

The product of its digits is 20160, while the sum is 31.

The square root of 4245637 is about 2060.4943581578. The cubic root of 4245637 is about 161.9251419627.

The spelling of 4245637 in words is "four million, two hundred forty-five thousand, six hundred thirty-seven".