290673 has 6 divisors (see below), whose sum is σ = 419874. Its totient is φ = 193776.

The previous prime is 290671. The next prime is 290677. The reversal of 290673 is 376092.

It can be written as a sum of positive squares in only one way, i.e., 288369 + 2304 = 537^2 + 48^2 .

It is not a de Polignac number, because 290673 - 2¹ = 290671 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (290671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16140 + ... + 16157.

It is an arithmetic number, because the mean of its divisors is an integer number (69979).

2²⁹⁰⁶⁷³ is an apocalyptic number.

It is an amenable number.

290673 is a deficient number, since it is larger than the sum of its proper divisors (129201).

290673 is a wasteful number, since it uses less digits than its factorization.

290673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32303 (or 32300 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 290673 is about 539.1409834171. The cubic root of 290673 is about 66.2422228915.

The spelling of 290673 in words is "two hundred ninety thousand, six hundred seventy-three".