75686983 has 2 divisors, whose sum is σ = 75686984. Its totient is φ = 75686982.

The previous prime is 75686957. The next prime is 75687011. The reversal of 75686983 is 38968657.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75686983 - 2¹³ = 75678791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75686983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75686683) 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, 37843491 + 37843492.

It is an arithmetic number, because the mean of its divisors is an integer number (37843492).

Almost surely, 2^75686983 is an apocalyptic number.

75686983 is a deficient number, since it is larger than the sum of its proper divisors (1).

75686983 is an equidigital number, since it uses as much as digits as its factorization.

75686983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The square root of 75686983 is about 8699.8266074675. The cubic root of 75686983 is about 423.0000298070. Note that the first 4 decimals are identical.

The spelling of 75686983 in words is "seventy-five million, six hundred eighty-six thousand, nine hundred eighty-three".