90642527 has 2 divisors, whose sum is σ = 90642528. Its totient is φ = 90642526.

The previous prime is 90642493. The next prime is 90642533. The reversal of 90642527 is 72524609.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90642527 - 2⁶ = 90642463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90642577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45321263 + 45321264.

It is an arithmetic number, because the mean of its divisors is an integer number (45321264).

Almost surely, 2^90642527 is an apocalyptic number.

90642527 is a deficient number, since it is larger than the sum of its proper divisors (1).

90642527 is an equidigital number, since it uses as much as digits as its factorization.

90642527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 90642527 is about 9520.6369009641. The cubic root of 90642527 is about 449.2043999694.

The spelling of 90642527 in words is "ninety million, six hundred forty-two thousand, five hundred twenty-seven".