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8472049 is a prime number
BaseRepresentation
bin100000010100…
…010111110001
3120221102110121
4200110113301
54132101144
6501330241
7132003565
oct40242761
916842417
108472049
1148671a3
122a06981
1319a8261
1411a76a5
15b25384
hex8145f1

8472049 has 2 divisors, whose sum is σ = 8472050. Its totient is φ = 8472048.

The previous prime is 8472047. The next prime is 8472053. The reversal of 8472049 is 9402748.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7535025 + 937024 = 2745^2 + 968^2 .

It is a cyclic number.

It is not a de Polignac number, because 8472049 - 21 = 8472047 is a prime.

It is a super-2 number, since 2×84720492 = 143551228516802, which contains 22 as substring.

Together with 8472047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8472047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4236024 + 4236025.

It is an arithmetic number, because the mean of its divisors is an integer number (4236025).

Almost surely, 28472049 is an apocalyptic number.

It is an amenable number.

8472049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8472049 is an equidigital number, since it uses as much as digits as its factorization.

8472049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 8472049 is about 2910.6784432500. The cubic root of 8472049 is about 203.8588107375.

The spelling of 8472049 in words is "eight million, four hundred seventy-two thousand, forty-nine".