90627571 has 2 divisors, whose sum is σ = 90627572. Its totient is φ = 90627570.

The previous prime is 90627569. The next prime is 90627619. The reversal of 90627571 is 17572609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90627571 - 2¹ = 90627569 is a prime.

Together with 90627569, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90627571.

It is not a weakly prime, because it can be changed into another prime (90637571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45313785 + 45313786.

It is an arithmetic number, because the mean of its divisors is an integer number (45313786).

Almost surely, 2^90627571 is an apocalyptic number.

90627571 is a deficient number, since it is larger than the sum of its proper divisors (1).

90627571 is an equidigital number, since it uses as much as digits as its factorization.

90627571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 90627571 is about 9519.8514169077. The cubic root of 90627571 is about 449.1796923964.

The spelling of 90627571 in words is "ninety million, six hundred twenty-seven thousand, five hundred seventy-one".