290961 has 12 divisors (see below), whose sum is σ = 458640. Its totient is φ = 176280.

The previous prime is 290959. The next prime is 290963. The reversal of 290961 is 169092.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (290959) and next prime (290963).

It is not a de Polignac number, because 290961 - 2¹ = 290959 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (290963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1371 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (38220).

2²⁹⁰⁹⁶¹ is an apocalyptic number.

It is an amenable number.

290961 is a deficient number, since it is larger than the sum of its proper divisors (167679).

290961 is a wasteful number, since it uses less digits than its factorization.

290961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 2953 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 290961 is about 539.4080088393. The cubic root of 290961 is about 66.2640933587.

The spelling of 290961 in words is "two hundred ninety thousand, nine hundred sixty-one".