4247387 has 4 divisors (see below), whose sum is σ = 4432080. Its totient is φ = 4062696.

The previous prime is 4247381. The next prime is 4247389. The reversal of 4247387 is 7837424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4247387 - 2⁴ = 4247371 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4³ + 2¹⁵ + 4¹¹ + 7 + 3⁹ + 8³ + 7² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4247381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92312 + ... + 92357.

It is an arithmetic number, because the mean of its divisors is an integer number (1108020).

Almost surely, 2^4247387 is an apocalyptic number.

4247387 is a deficient number, since it is larger than the sum of its proper divisors (184693).

4247387 is a wasteful number, since it uses less digits than its factorization.

4247387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184692.

The product of its digits is 37632, while the sum is 35.

The square root of 4247387 is about 2060.9189697802. The cubic root of 4247387 is about 161.9473867655.

The spelling of 4247387 in words is "four million, two hundred forty-seven thousand, three hundred eighty-seven".