75828617 has 2 divisors, whose sum is σ = 75828618. Its totient is φ = 75828616.

The previous prime is 75828589. The next prime is 75828659. The reversal of 75828617 is 71682857.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59660176 + 16168441 = 7724^2 + 4021^2 .

It is a cyclic number.

It is not a de Polignac number, because 75828617 - 2⁶ = 75828553 is a prime.

It is a super-3 number, since 3×75828617³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (75828667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37914308 + 37914309.

It is an arithmetic number, because the mean of its divisors is an integer number (37914309).

Almost surely, 2^75828617 is an apocalyptic number.

It is an amenable number.

75828617 is a deficient number, since it is larger than the sum of its proper divisors (1).

75828617 is an equidigital number, since it uses as much as digits as its factorization.

75828617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 44.

The square root of 75828617 is about 8707.9628501734. The cubic root of 75828617 is about 423.2637204787.

Subtracting from 75828617 its reverse (71682857), we obtain a triangular number (4145760 = T₂₈₇₉).

The spelling of 75828617 in words is "seventy-five million, eight hundred twenty-eight thousand, six hundred seventeen".