90699855 has 8 divisors (see below), whose sum is σ = 145119792. Its totient is φ = 48373248.

The previous prime is 90699841. The next prime is 90699877. The reversal of 90699855 is 55899609.

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

It is not a de Polignac number, because 90699855 - 2¹¹ = 90697807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90699798 and 90699807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3023314 + ... + 3023343.

It is an arithmetic number, because the mean of its divisors is an integer number (18139974).

Almost surely, 2^90699855 is an apocalyptic number.

90699855 is a deficient number, since it is larger than the sum of its proper divisors (54419937).

90699855 is a wasteful number, since it uses less digits than its factorization.

90699855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046665.

The product of its (nonzero) digits is 874800, while the sum is 51.

The square root of 90699855 is about 9523.6471480206. The cubic root of 90699855 is about 449.2990816585.

The spelling of 90699855 in words is "ninety million, six hundred ninety-nine thousand, eight hundred fifty-five".