90816311 has 4 divisors (see below), whose sum is σ = 90891792. Its totient is φ = 90740832.

The previous prime is 90816287. The next prime is 90816317. The reversal of 90816311 is 11361809.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90816311 - 2¹⁴ = 90799927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90816317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35906 + ... + 38351.

It is an arithmetic number, because the mean of its divisors is an integer number (22722948).

Almost surely, 2^90816311 is an apocalyptic number.

90816311 is a deficient number, since it is larger than the sum of its proper divisors (75481).

90816311 is a wasteful number, since it uses less digits than its factorization.

90816311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75480.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 90816311 is about 9529.7592309565. The cubic root of 90816311 is about 449.4912951074.

The spelling of 90816311 in words is "ninety million, eight hundred sixteen thousand, three hundred eleven".