90667271 has 2 divisors, whose sum is σ = 90667272. Its totient is φ = 90667270.

The previous prime is 90667267. The next prime is 90667301. The reversal of 90667271 is 17276609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90667271 - 2² = 90667267 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90667201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45333635 + 45333636.

It is an arithmetic number, because the mean of its divisors is an integer number (45333636).

Almost surely, 2^90667271 is an apocalyptic number.

90667271 is a deficient number, since it is larger than the sum of its proper divisors (1).

90667271 is an equidigital number, since it uses as much as digits as its factorization.

90667271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 90667271 is about 9521.9363051850. The cubic root of 90667271 is about 449.2452715219.

The spelling of 90667271 in words is "ninety million, six hundred sixty-seven thousand, two hundred seventy-one".