90966993 has 8 divisors (see below), whose sum is σ = 130619328. Its totient is φ = 55979664.

The previous prime is 90966991. The next prime is 90967007. The reversal of 90966993 is 39966909.

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

It is not a de Polignac number, because 90966993 - 2¹ = 90966991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90966991) 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 7 ways as a sum of consecutive naturals, for example, 1166205 + ... + 1166282.

It is an arithmetic number, because the mean of its divisors is an integer number (16327416).

Almost surely, 2^90966993 is an apocalyptic number.

It is an amenable number.

90966993 is a deficient number, since it is larger than the sum of its proper divisors (39652335).

90966993 is a wasteful number, since it uses less digits than its factorization.

90966993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332503.

The product of its (nonzero) digits is 708588, while the sum is 51.

The square root of 90966993 is about 9537.6618203834. The cubic root of 90966993 is about 449.7397556972.

The spelling of 90966993 in words is "ninety million, nine hundred sixty-six thousand, nine hundred ninety-three".