4247545 has 8 divisors (see below), whose sum is σ = 5365440. Its totient is φ = 3219120.

The previous prime is 4247539. The next prime is 4247549. The reversal of 4247545 is 5457424.

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

It is not a de Polignac number, because 4247545 - 2⁵ = 4247513 is a prime.

It is a d-powerful number, because it can be written as 4³ + 2²² + 4⁵ + 7⁵ + 5⁶ + 4⁶ + 5⁶ .

4247545 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22261 + ... + 22450.

It is an arithmetic number, because the mean of its divisors is an integer number (670680).

Almost surely, 2^4247545 is an apocalyptic number.

It is an amenable number.

4247545 is a deficient number, since it is larger than the sum of its proper divisors (1117895).

4247545 is a wasteful number, since it uses less digits than its factorization.

4247545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44735.

The product of its digits is 22400, while the sum is 31.

The square root of 4247545 is about 2060.9573018382. The cubic root of 4247545 is about 161.9493948527.

The spelling of 4247545 in words is "four million, two hundred forty-seven thousand, five hundred forty-five".