90699263 has 4 divisors (see below), whose sum is σ = 90718320. Its totient is φ = 90680208.

The previous prime is 90699251. The next prime is 90699311. The reversal of 90699263 is 36299609.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36299609 = 311 ⋅116719.

It is a cyclic number.

It is not a de Polignac number, because 90699263 - 2¹⁰ = 90698239 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90690263) by changing a digit.

Being equal to 9×6⁹-1, it is a generalized Woodall number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4331 + ... + 14147.

It is an arithmetic number, because the mean of its divisors is an integer number (22679580).

Almost surely, 2^90699263 is an apocalyptic number.

90699263 is a deficient number, since it is larger than the sum of its proper divisors (19057).

90699263 is an equidigital number, since it uses as much as digits as its factorization.

90699263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19056.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 90699263 is about 9523.6160674399. The cubic root of 90699263 is about 449.2981041280.

The spelling of 90699263 in words is "ninety million, six hundred ninety-nine thousand, two hundred sixty-three".