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97965811 is a prime number
BaseRepresentation
bin1011101011011…
…01011011110011
320211100011211101
411311231123303
5200034401221
613415425231
72266460416
oct565553363
9224304741
1097965811
1150332189
1228985217
13173b0948
14d021b7d
158901d91
hex5d6d6f3

97965811 has 2 divisors, whose sum is σ = 97965812. Its totient is φ = 97965810.

The previous prime is 97965787. The next prime is 97965841. The reversal of 97965811 is 11856979.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (11856979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97965811 - 25 = 97965779 is a prime.

It is not a weakly prime, because it can be changed into another prime (97965841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48982905 + 48982906.

It is an arithmetic number, because the mean of its divisors is an integer number (48982906).

Almost surely, 297965811 is an apocalyptic number.

97965811 is a deficient number, since it is larger than the sum of its proper divisors (1).

97965811 is an equidigital number, since it uses as much as digits as its factorization.

97965811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 46.

The square root of 97965811 is about 9897.7679807116. The cubic root of 97965811 is about 460.9900086140.

The spelling of 97965811 in words is "ninety-seven million, nine hundred sixty-five thousand, eight hundred eleven".