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2214869 is a prime number
BaseRepresentation
bin1000011100101111010101
311011112020012
420130233111
51031333434
6115250005
724553226
oct10345725
94145205
102214869
111283078
128a9905
135c7197
1441924d
152db3ce
hex21cbd5

2214869 has 2 divisors, whose sum is σ = 2214870. Its totient is φ = 2214868.

The previous prime is 2214847. The next prime is 2214907. The reversal of 2214869 is 9684122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2146225 + 68644 = 1465^2 + 262^2 .

It is a cyclic number.

It is not a de Polignac number, because 2214869 - 212 = 2210773 is a prime.

It is a super-2 number, since 2×22148692 = 9811289374322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2214169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107434 + 1107435.

It is an arithmetic number, because the mean of its divisors is an integer number (1107435).

22214869 is an apocalyptic number.

It is an amenable number.

2214869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2214869 is an equidigital number, since it uses as much as digits as its factorization.

2214869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 2214869 is about 1488.2435956523. The cubic root of 2214869 is about 130.3514945305.

The spelling of 2214869 in words is "two million, two hundred fourteen thousand, eight hundred sixty-nine".