90971306 has 16 divisors (see below), whose sum is σ = 139771008. Its totient is φ = 44394000.

The previous prime is 90971299. The next prime is 90971317. The reversal of 90971306 is 60317909.

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 7 ways as a sum of consecutive naturals, for example, 11171 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (8735688).

Almost surely, 2^90971306 is an apocalyptic number.

90971306 is a deficient number, since it is larger than the sum of its proper divisors (48799702).

90971306 is a wasteful number, since it uses less digits than its factorization.

90971306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6517.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 90971306 is about 9537.8879213377. The cubic root of 90971306 is about 449.7468633921.

The spelling of 90971306 in words is "ninety million, nine hundred seventy-one thousand, three hundred six".