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9978653 is a prime number
BaseRepresentation
bin100110000100…
…001100011101
3200202222010202
4212010030131
510023304103
6553513245
7150550166
oct46041435
920688122
109978653
1156a6123
123412825
1320b4c39
14147a76d
15d21988
hex98431d

9978653 has 2 divisors, whose sum is σ = 9978654. Its totient is φ = 9978652.

The previous prime is 9978649. The next prime is 9978659. The reversal of 9978653 is 3568799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7279204 + 2699449 = 2698^2 + 1643^2 .

It is a cyclic number.

It is not a de Polignac number, because 9978653 - 22 = 9978649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9978598 and 9978607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9978659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4989326 + 4989327.

It is an arithmetic number, because the mean of its divisors is an integer number (4989327).

Almost surely, 29978653 is an apocalyptic number.

It is an amenable number.

9978653 is a deficient number, since it is larger than the sum of its proper divisors (1).

9978653 is an equidigital number, since it uses as much as digits as its factorization.

9978653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 9978653 is about 3158.9005998923. The cubic root of 9978653 is about 215.2900573977.

The spelling of 9978653 in words is "nine million, nine hundred seventy-eight thousand, six hundred fifty-three".