290073 has 16 divisors (see below), whose sum is σ = 465920. Its totient is φ = 156816.

The previous prime is 290057. The next prime is 290083. The reversal of 290073 is 370092.

290073 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 290073 - 2⁴ = 290057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

290073 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (290023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36 + ... + 762.

It is an arithmetic number, because the mean of its divisors is an integer number (29120).

2²⁹⁰⁰⁷³ is an apocalyptic number.

It is an amenable number.

290073 is a deficient number, since it is larger than the sum of its proper divisors (175847).

290073 is a wasteful number, since it uses less digits than its factorization.

290073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 290073 is about 538.5842552470. The cubic root of 290073 is about 66.1966129768.

The spelling of 290073 in words is "two hundred ninety thousand, seventy-three".