290161617 has 16 divisors (see below), whose sum is σ = 400846080. Its totient is φ = 186480000.

The previous prime is 290161601. The next prime is 290161621. The reversal of 290161617 is 716161092.

It is not a de Polignac number, because 290161617 - 2⁴ = 290161601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290161667) 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 in 15 ways as a sum of consecutive naturals, for example, 63117 + ... + 67557.

It is an arithmetic number, because the mean of its divisors is an integer number (25052880).

Almost surely, 2^290161617 is an apocalyptic number.

It is an amenable number.

290161617 is a deficient number, since it is larger than the sum of its proper divisors (110684463).

290161617 is a wasteful number, since it uses less digits than its factorization.

290161617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 290161617 is about 17034.1309434911. The cubic root of 290161617 is about 662.0335328925.

The spelling of 290161617 in words is "two hundred ninety million, one hundred sixty-one thousand, six hundred seventeen".