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98864221 is a prime number
BaseRepresentation
bin1011110010010…
…00110001011101
320220000211012211
411321020301131
5200302123341
613451000421
72310221611
oct571106135
9226024184
1098864221
1150896175
1229139111
1317636851
14d1b7341
158a2d181
hex5e48c5d

98864221 has 2 divisors, whose sum is σ = 98864222. Its totient is φ = 98864220.

The previous prime is 98864209. The next prime is 98864237. The reversal of 98864221 is 12246889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90535225 + 8328996 = 9515^2 + 2886^2 .

It is a cyclic number.

It is not a de Polignac number, because 98864221 - 27 = 98864093 is a prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98864251) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49432110 + 49432111.

It is an arithmetic number, because the mean of its divisors is an integer number (49432111).

Almost surely, 298864221 is an apocalyptic number.

It is an amenable number.

98864221 is a deficient number, since it is larger than the sum of its proper divisors (1).

98864221 is an equidigital number, since it uses as much as digits as its factorization.

98864221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 98864221 is about 9943.0488784879. The cubic root of 98864221 is about 462.3949151076.

The spelling of 98864221 in words is "ninety-eight million, eight hundred sixty-four thousand, two hundred twenty-one".