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76900669 is a prime number
BaseRepresentation
bin1001001010101…
…10100100111101
312100200221212221
410211112210331
5124141310134
611344125341
71622434126
oct445264475
9170627787
1076900669
113a45467a
1221906851
1312c16771
14a2db04d
156b405b4
hex495693d

76900669 has 2 divisors, whose sum is σ = 76900670. Its totient is φ = 76900668.

The previous prime is 76900667. The next prime is 76900711. The reversal of 76900669 is 96600967.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66422500 + 10478169 = 8150^2 + 3237^2 .

It is a cyclic number.

It is not a de Polignac number, because 76900669 - 21 = 76900667 is a prime.

It is a super-2 number, since 2×769006692 = 11827425785295122, which contains 22 as substring.

Together with 76900667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76900667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38450334 + 38450335.

It is an arithmetic number, because the mean of its divisors is an integer number (38450335).

Almost surely, 276900669 is an apocalyptic number.

It is an amenable number.

76900669 is a deficient number, since it is larger than the sum of its proper divisors (1).

76900669 is an equidigital number, since it uses as much as digits as its factorization.

76900669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 76900669 is about 8769.3026518646. The cubic root of 76900669 is about 425.2490701522.

The spelling of 76900669 in words is "seventy-six million, nine hundred thousand, six hundred sixty-nine".