90427279 has 8 divisors (see below), whose sum is σ = 93529728. Its totient is φ = 87336480.

The previous prime is 90427241. The next prime is 90427303. The reversal of 90427279 is 97272409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90427279 - 2⁹ = 90426767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90427229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14649 + ... + 19885.

It is an arithmetic number, because the mean of its divisors is an integer number (11691216).

Almost surely, 2^90427279 is an apocalyptic number.

90427279 is a deficient number, since it is larger than the sum of its proper divisors (3102449).

90427279 is a wasteful number, since it uses less digits than its factorization.

90427279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 90427279 is about 9509.3258961926. The cubic root of 90427279 is about 448.8485442447.

The spelling of 90427279 in words is "ninety million, four hundred twenty-seven thousand, two hundred seventy-nine".