90208814 has 4 divisors (see below), whose sum is σ = 135313224. Its totient is φ = 45104406.

The previous prime is 90208777. The next prime is 90208819. The reversal of 90208814 is 41880209.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90208819) 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 as a sum of consecutive naturals, namely, 22552202 + ... + 22552205.

It is an arithmetic number, because the mean of its divisors is an integer number (33828306).

Almost surely, 2^90208814 is an apocalyptic number.

90208814 is a deficient number, since it is larger than the sum of its proper divisors (45104410).

90208814 is a wasteful number, since it uses less digits than its factorization.

90208814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45104409.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 90208814 is about 9497.8320684249. The cubic root of 90208814 is about 448.4867921608.

The spelling of 90208814 in words is "ninety million, two hundred eight thousand, eight hundred fourteen".