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8197385629 is a prime number
BaseRepresentation
bin1111010001001101…
…00010110110011101
3210011021211100002011
413220212202312131
5113242012320004
63433230231221
7410065425316
oct75046426635
923137740064
108197385629
113527235174
121709355511
13a083c3454
1457a9a960d
1532e9da004
hex1e89a2d9d

8197385629 has 2 divisors, whose sum is σ = 8197385630. Its totient is φ = 8197385628.

The previous prime is 8197385597. The next prime is 8197385681. The reversal of 8197385629 is 9265837918.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7672884025 + 524501604 = 87595^2 + 22902^2 .

It is a cyclic number.

It is not a de Polignac number, because 8197385629 - 25 = 8197385597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8197385699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4098692814 + 4098692815.

It is an arithmetic number, because the mean of its divisors is an integer number (4098692815).

Almost surely, 28197385629 is an apocalyptic number.

It is an amenable number.

8197385629 is a deficient number, since it is larger than the sum of its proper divisors (1).

8197385629 is an equidigital number, since it uses as much as digits as its factorization.

8197385629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 58.

The square root of 8197385629 is about 90539.4147816298. The cubic root of 8197385629 is about 2016.3153452555.

The spelling of 8197385629 in words is "eight billion, one hundred ninety-seven million, three hundred eighty-five thousand, six hundred twenty-nine".