90909127 has 2 divisors, whose sum is σ = 90909128. Its totient is φ = 90909126.

The previous prime is 90909121. The next prime is 90909157. The reversal of 90909127 is 72190909.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90909127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90909121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45454563 + 45454564.

It is an arithmetic number, because the mean of its divisors is an integer number (45454564).

Almost surely, 2^90909127 is an apocalyptic number.

90909127 is a deficient number, since it is larger than the sum of its proper divisors (1).

90909127 is an equidigital number, since it uses as much as digits as its factorization.

90909127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 90909127 is about 9534.6277850790. The cubic root of 90909127 is about 449.6443725255.

The spelling of 90909127 in words is "ninety million, nine hundred nine thousand, one hundred twenty-seven".