90966387 has 16 divisors (see below), whose sum is σ = 124843680. Its totient is φ = 58874112.

The previous prime is 90966361. The next prime is 90966389. The reversal of 90966387 is 78366909.

It is a happy number.

It is not a de Polignac number, because 90966387 - 2¹¹ = 90964339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90966389) by changing a digit.

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, 89293 + ... + 90305.

It is an arithmetic number, because the mean of its divisors is an integer number (7802730).

Almost surely, 2^90966387 is an apocalyptic number.

90966387 is a deficient number, since it is larger than the sum of its proper divisors (33877293).

90966387 is a wasteful number, since it uses less digits than its factorization.

90966387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 90966387 is about 9537.6300515380. The cubic root of 90966387 is about 449.7387570093.

The spelling of 90966387 in words is "ninety million, nine hundred sixty-six thousand, three hundred eighty-seven".