9063991 has 2 divisors, whose sum is σ = 9063992. Its totient is φ = 9063990.

The previous prime is 9063973. The next prime is 9064019. The reversal of 9063991 is 1993609.

9063991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9063991 - 2⁵ = 9063959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9063991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9063491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4531995 + 4531996.

It is an arithmetic number, because the mean of its divisors is an integer number (4531996).

Almost surely, 2^9063991 is an apocalyptic number.

9063991 is a deficient number, since it is larger than the sum of its proper divisors (1).

9063991 is an equidigital number, since it uses as much as digits as its factorization.

9063991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 9063991 is about 3010.6462761341. The cubic root of 9063991 is about 208.5002060700.

The spelling of 9063991 in words is "nine million, sixty-three thousand, nine hundred ninety-one".