90604571 has 2 divisors, whose sum is σ = 90604572. Its totient is φ = 90604570.

The previous prime is 90604541. The next prime is 90604583. The reversal of 90604571 is 17540609.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (17540609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90604571 - 2²² = 86410267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90604541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45302285 + 45302286.

It is an arithmetic number, because the mean of its divisors is an integer number (45302286).

Almost surely, 2^90604571 is an apocalyptic number.

90604571 is a deficient number, since it is larger than the sum of its proper divisors (1).

90604571 is an equidigital number, since it uses as much as digits as its factorization.

90604571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 90604571 is about 9518.6433382074. The cubic root of 90604571 is about 449.1416906901.

It can be divided in two parts, 9060 and 4571, that added together give a palindrome (13631).

The spelling of 90604571 in words is "ninety million, six hundred four thousand, five hundred seventy-one".