90939127 has 2 divisors, whose sum is σ = 90939128. Its totient is φ = 90939126.

The previous prime is 90939097. The next prime is 90939131. The reversal of 90939127 is 72193909.

It is a strong prime.

It is an emirp because it is prime and its reverse (72193909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90939127 - 2⁷ = 90938999 is a prime.

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 90939127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90934127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45469563 + 45469564.

It is an arithmetic number, because the mean of its divisors is an integer number (45469564).

Almost surely, 2^90939127 is an apocalyptic number.

90939127 is a deficient number, since it is larger than the sum of its proper divisors (1).

90939127 is an equidigital number, since it uses as much as digits as its factorization.

90939127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 90939127 is about 9536.2008682703. The cubic root of 90939127 is about 449.6938279472.

The spelling of 90939127 in words is "ninety million, nine hundred thirty-nine thousand, one hundred twenty-seven".