75847697 has 4 divisors (see below), whose sum is σ = 75940020. Its totient is φ = 75755376.

The previous prime is 75847661. The next prime is 75847703. The reversal of 75847697 is 79674857.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79674857 = 2719 ⋅29303.

It can be written as a sum of positive squares in 2 ways, for example, as 63744256 + 12103441 = 7984^2 + 3479^2 .

It is a cyclic number.

It is not a de Polignac number, because 75847697 - 2¹² = 75843601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75847397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44918 + ... + 46575.

It is an arithmetic number, because the mean of its divisors is an integer number (18985005).

Almost surely, 2^75847697 is an apocalyptic number.

It is an amenable number.

75847697 is a deficient number, since it is larger than the sum of its proper divisors (92323).

75847697 is an equidigital number, since it uses as much as digits as its factorization.

75847697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92322.

The product of its digits is 2963520, while the sum is 53.

The square root of 75847697 is about 8709.0583302674. The cubic root of 75847697 is about 423.2992180470.

The spelling of 75847697 in words is "seventy-five million, eight hundred forty-seven thousand, six hundred ninety-seven".