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83628829 is a prime number
BaseRepresentation
bin1001111110000…
…01001100011101
312211100210012001
410333001030131
5132402110304
612144242301
72033555554
oct477011435
9184323161
1083628829
114322a639
1224010391
131443101b
14b16cd9b
15751dda4
hex4fc131d

83628829 has 2 divisors, whose sum is σ = 83628830. Its totient is φ = 83628828.

The previous prime is 83628827. The next prime is 83628863. The reversal of 83628829 is 92882638.

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., 73925604 + 9703225 = 8598^2 + 3115^2 .

It is a cyclic number.

It is not a de Polignac number, because 83628829 - 21 = 83628827 is a prime.

It is a super-2 number, since 2×836288292 = 13987562079822482, which contains 22 as substring.

Together with 83628827, 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 (83628821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41814414 + 41814415.

It is an arithmetic number, because the mean of its divisors is an integer number (41814415).

Almost surely, 283628829 is an apocalyptic number.

It is an amenable number.

83628829 is a deficient number, since it is larger than the sum of its proper divisors (1).

83628829 is an equidigital number, since it uses as much as digits as its factorization.

83628829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 46.

The square root of 83628829 is about 9144.8799336022. The cubic root of 83628829 is about 437.3059018189.

The spelling of 83628829 in words is "eighty-three million, six hundred twenty-eight thousand, eight hundred twenty-nine".