90844849 has 8 divisors (see below), whose sum is σ = 97009920. Its totient is φ = 84882000.

The previous prime is 90844829. The next prime is 90844861. The reversal of 90844849 is 94844809.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 90844849 - 2¹⁵ = 90812081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90844799 and 90844808.

It is not an unprimeable number, because it can be changed into a prime (90844829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49627 + ... + 51424.

It is an arithmetic number, because the mean of its divisors is an integer number (12126240).

Almost surely, 2^90844849 is an apocalyptic number.

It is an amenable number.

90844849 is a deficient number, since it is larger than the sum of its proper divisors (6165071).

90844849 is a wasteful number, since it uses less digits than its factorization.

90844849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101111.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 90844849 is about 9531.2564229487. The cubic root of 90844849 is about 449.5383726974.

The spelling of 90844849 in words is "ninety million, eight hundred forty-four thousand, eight hundred forty-nine".