4030247 has 4 divisors (see below), whose sum is σ = 4340280. Its totient is φ = 3720216.

The previous prime is 4030219. The next prime is 4030277. The reversal of 4030247 is 7420304.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4030247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030277) 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, 154997 + ... + 155022.

It is an arithmetic number, because the mean of its divisors is an integer number (1085070).

Almost surely, 2^4030247 is an apocalyptic number.

4030247 is a deficient number, since it is larger than the sum of its proper divisors (310033).

4030247 is a wasteful number, since it uses less digits than its factorization.

4030247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310032.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 4030247 is about 2007.5475087778. The cubic root of 4030247 is about 159.1392185460.

The spelling of 4030247 in words is "four million, thirty thousand, two hundred forty-seven".