4247397 has 48 divisors (see below), whose sum is σ = 7967232. Its totient is φ = 2196720.

The previous prime is 4247389. The next prime is 4247407. The reversal of 4247397 is 7937424.

It is not a de Polignac number, because 4247397 - 2³ = 4247389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247377) 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 47 ways as a sum of consecutive naturals, for example, 18598 + ... + 18824.

It is an arithmetic number, because the mean of its divisors is an integer number (165984).

Almost surely, 2^4247397 is an apocalyptic number.

It is an amenable number.

4247397 is a deficient number, since it is larger than the sum of its proper divisors (3719835).

4247397 is a wasteful number, since it uses less digits than its factorization.

4247397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 248 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 4247397 is about 2060.9213958810. The cubic root of 4247397 is about 161.9475138611.

The spelling of 4247397 in words is "four million, two hundred forty-seven thousand, three hundred ninety-seven".