290066889 has 16 divisors (see below), whose sum is σ = 442644480. Its totient is φ = 165513360.

The previous prime is 290066839. The next prime is 290066897. The reversal of 290066889 is 988660092.

It is not a de Polignac number, because 290066889 - 2⁷ = 290066761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290066839) 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 15 ways as a sum of consecutive naturals, for example, 5494 + ... + 24704.

It is an arithmetic number, because the mean of its divisors is an integer number (27665280).

Almost surely, 2^290066889 is an apocalyptic number.

It is an amenable number.

290066889 is a deficient number, since it is larger than the sum of its proper divisors (152577591).

290066889 is a wasteful number, since it uses less digits than its factorization.

290066889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19940.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 290066889 is about 17031.3501813567. The cubic root of 290066889 is about 661.9614811638.

The spelling of 290066889 in words is "two hundred ninety million, sixty-six thousand, eight hundred eighty-nine".