75684677 has 2 divisors, whose sum is σ = 75684678. Its totient is φ = 75684676.

The previous prime is 75684667. The next prime is 75684727. The reversal of 75684677 is 77648657.

It is an a-pointer prime, because the next prime (75684727) can be obtained adding 75684677 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75186241 + 498436 = 8671^2 + 706^2 .

It is a cyclic number.

It is not a de Polignac number, because 75684677 - 2⁶ = 75684613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75684667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37842338 + 37842339.

It is an arithmetic number, because the mean of its divisors is an integer number (37842339).

Almost surely, 2^75684677 is an apocalyptic number.

It is an amenable number.

75684677 is a deficient number, since it is larger than the sum of its proper divisors (1).

75684677 is an equidigital number, since it uses as much as digits as its factorization.

75684677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 50.

The square root of 75684677 is about 8699.6940750810. The cubic root of 75684677 is about 422.9957338328.

The spelling of 75684677 in words is "seventy-five million, six hundred eighty-four thousand, six hundred seventy-seven".