90824161 has 8 divisors (see below), whose sum is σ = 96757920. Its totient is φ = 85005792.

The previous prime is 90824147. The next prime is 90824179. The reversal of 90824161 is 16142809.

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 90824161 - 2¹³ = 90815969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90884161) 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, 27220 + ... + 30373.

It is an arithmetic number, because the mean of its divisors is an integer number (12094740).

Almost surely, 2^90824161 is an apocalyptic number.

It is an amenable number.

90824161 is a deficient number, since it is larger than the sum of its proper divisors (5933759).

90824161 is a wasteful number, since it uses less digits than its factorization.

90824161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57695.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 90824161 is about 9530.1710897549. The cubic root of 90824161 is about 449.5042458096.

The spelling of 90824161 in words is "ninety million, eight hundred twenty-four thousand, one hundred sixty-one".