2205247 has 16 divisors (see below), whose sum is σ = 2580480. Its totient is φ = 1864800.

The previous prime is 2205239. The next prime is 2205251. The reversal of 2205247 is 7425022.

It is a cyclic number.

It is not a de Polignac number, because 2205247 - 2³ = 2205239 is a prime.

It is a super-2 number, since 2×2205247² = 9726228662018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9778 + ... + 10000.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

2^2205247 is an apocalyptic number.

2205247 is a deficient number, since it is larger than the sum of its proper divisors (375233).

2205247 is a wasteful number, since it uses less digits than its factorization.

2205247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 2205247 is about 1485.0074073889. The cubic root of 2205247 is about 130.1624596133.

Subtracting from 2205247 its sum of digits (22), we obtain a square (2205225 = 1485²).

The spelling of 2205247 in words is "two million, two hundred five thousand, two hundred forty-seven".