90471067 has 2 divisors, whose sum is σ = 90471068. Its totient is φ = 90471066.

The previous prime is 90471049. The next prime is 90471071. The reversal of 90471067 is 76017409.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90471067 is a prime.

It is not a weakly prime, because it can be changed into another prime (90471047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45235533 + 45235534.

It is an arithmetic number, because the mean of its divisors is an integer number (45235534).

Almost surely, 2^90471067 is an apocalyptic number.

90471067 is a deficient number, since it is larger than the sum of its proper divisors (1).

90471067 is an equidigital number, since it uses as much as digits as its factorization.

90471067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 90471067 is about 9511.6279889407. The cubic root of 90471067 is about 448.9209818569.

The spelling of 90471067 in words is "ninety million, four hundred seventy-one thousand, sixty-seven".