75916691 has 2 divisors, whose sum is σ = 75916692. Its totient is φ = 75916690.

The previous prime is 75916669. The next prime is 75916699. The reversal of 75916691 is 19661957.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75916691 - 2⁶ = 75916627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75916699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37958345 + 37958346.

It is an arithmetic number, because the mean of its divisors is an integer number (37958346).

Almost surely, 2^75916691 is an apocalyptic number.

75916691 is a deficient number, since it is larger than the sum of its proper divisors (1).

75916691 is an equidigital number, since it uses as much as digits as its factorization.

75916691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 44.

The square root of 75916691 is about 8713.0184781165. The cubic root of 75916691 is about 423.4275289319.

The spelling of 75916691 in words is "seventy-five million, nine hundred sixteen thousand, six hundred ninety-one".