10075991 has 2 divisors, whose sum is σ = 10075992. Its totient is φ = 10075990.

The previous prime is 10075987. The next prime is 10075999. The reversal of 10075991 is 19957001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10075991 - 2² = 10075987 is a prime.

It is a super-3 number, since 3×10075991³ (a number of 22 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10075999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5037995 + 5037996.

It is an arithmetic number, because the mean of its divisors is an integer number (5037996).

Almost surely, 2^10075991 is an apocalyptic number.

10075991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10075991 is an equidigital number, since it uses as much as digits as its factorization.

10075991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 10075991 is about 3174.2701523342. The cubic root of 10075991 is about 215.9878179572.

The spelling of 10075991 in words is "ten million, seventy-five thousand, nine hundred ninety-one".