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7920893 is a prime number
BaseRepresentation
bin11110001101110011111101
3112220102102102
4132031303331
54011432033
6441434445
7124216661
oct36156375
915812372
107920893
1145200a2
12279ba25
131844426
1410a28a1
15a66de8
hex78dcfd

7920893 has 2 divisors, whose sum is σ = 7920894. Its totient is φ = 7920892.

The previous prime is 7920883. The next prime is 7920949. The reversal of 7920893 is 3980297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5555449 + 2365444 = 2357^2 + 1538^2 .

It is a cyclic number.

It is not a de Polignac number, because 7920893 - 214 = 7904509 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7920833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3960446 + 3960447.

It is an arithmetic number, because the mean of its divisors is an integer number (3960447).

Almost surely, 27920893 is an apocalyptic number.

It is an amenable number.

7920893 is a deficient number, since it is larger than the sum of its proper divisors (1).

7920893 is an equidigital number, since it uses as much as digits as its factorization.

7920893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 7920893 is about 2814.4081082885. The cubic root of 7920893 is about 199.3385900959.

The spelling of 7920893 in words is "seven million, nine hundred twenty thousand, eight hundred ninety-three".