90693775 has 12 divisors (see below), whose sum is σ = 112635400. Its totient is φ = 72442080.

The previous prime is 90693773. The next prime is 90693787. The reversal of 90693775 is 57739609.

It is not a de Polignac number, because 90693775 - 2¹ = 90693773 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90693773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16021 + ... + 20929.

Almost surely, 2^90693775 is an apocalyptic number.

90693775 is a deficient number, since it is larger than the sum of its proper divisors (21941625).

90693775 is a wasteful number, since it uses less digits than its factorization.

90693775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658 (or 5653 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 90693775 is about 9523.3279372287. The cubic root of 90693775 is about 449.2890419532.

The spelling of 90693775 in words is "ninety million, six hundred ninety-three thousand, seven hundred seventy-five".