90271370 has 32 divisors (see below), whose sum is σ = 186506496. Its totient is φ = 30816000.

The previous prime is 90271361. The next prime is 90271387. The reversal of 90271370 is 7317209.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14195 + ... + 19545.

It is an arithmetic number, because the mean of its divisors is an integer number (5828328).

Almost surely, 2^90271370 is an apocalyptic number.

90271370 is an abundant number, since it is smaller than the sum of its proper divisors (96235126).

90271370 is a wasteful number, since it uses less digits than its factorization.

90271370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 90271370 is about 9501.1246702693. The cubic root of 90271370 is about 448.5904370853.

Adding to 90271370 its reverse (7317209), we get a palindrome (97588579).

The spelling of 90271370 in words is "ninety million, two hundred seventy-one thousand, three hundred seventy".