2247704021 has 4 divisors (see below), whose sum is σ = 2248678944. Its totient is φ = 2246729100.

The previous prime is 2247703981. The next prime is 2247704023. The reversal of 2247704021 is 1204077422.

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 not a de Polignac number, because 2247704021 - 2¹⁸ = 2247441877 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 (2247704023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483995 + ... + 488616.

It is an arithmetic number, because the mean of its divisors is an integer number (562169736).

Almost surely, 2^2247704021 is an apocalyptic number.

It is an amenable number.

2247704021 is a deficient number, since it is larger than the sum of its proper divisors (974923).

2247704021 is an equidigital number, since it uses as much as digits as its factorization.

2247704021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974922.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 2247704021 is about 47409.9569816299. The cubic root of 2247704021 is about 1309.9248293210.

The spelling of 2247704021 in words is "two billion, two hundred forty-seven million, seven hundred four thousand, twenty-one".