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83712899 is a prime number
BaseRepresentation
bin1001111110101…
…01101110000011
312211112001111202
410333111232003
5132412303044
612150131415
72034355634
oct477255603
9184461452
1083712899
1143287816
1224050b6b
131446037a
14b19188b
157538c4e
hex4fd5b83

83712899 has 2 divisors, whose sum is σ = 83712900. Its totient is φ = 83712898.

The previous prime is 83712883. The next prime is 83712911. The reversal of 83712899 is 99821738.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83712899 - 24 = 83712883 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83712809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41856449 + 41856450.

It is an arithmetic number, because the mean of its divisors is an integer number (41856450).

Almost surely, 283712899 is an apocalyptic number.

83712899 is a deficient number, since it is larger than the sum of its proper divisors (1).

83712899 is an equidigital number, since it uses as much as digits as its factorization.

83712899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 83712899 is about 9149.4753401493. The cubic root of 83712899 is about 437.4523903566.

The spelling of 83712899 in words is "eighty-three million, seven hundred twelve thousand, eight hundred ninety-nine".