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76809701 is a prime number
BaseRepresentation
bin1001001010000…
…00010111100101
312100112100002202
410211000113211
5124130402301
611342144245
71621604663
oct445002745
9170470082
1076809701
113a3a22a1
1221882085
1312bb4237
14a2b5c33
156b2366b
hex49405e5

76809701 has 2 divisors, whose sum is σ = 76809702. Its totient is φ = 76809700.

The previous prime is 76809679. The next prime is 76809721. The reversal of 76809701 is 10790867.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 20484676 = 7505^2 + 4526^2 .

It is an emirp because it is prime and its reverse (10790867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76809701 - 218 = 76547557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76809721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38404850 + 38404851.

It is an arithmetic number, because the mean of its divisors is an integer number (38404851).

Almost surely, 276809701 is an apocalyptic number.

It is an amenable number.

76809701 is a deficient number, since it is larger than the sum of its proper divisors (1).

76809701 is an equidigital number, since it uses as much as digits as its factorization.

76809701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 76809701 is about 8764.1143876606. The cubic root of 76809701 is about 425.0813242299.

The spelling of 76809701 in words is "seventy-six million, eight hundred nine thousand, seven hundred one".