290764 has 12 divisors (see below), whose sum is σ = 513184. Its totient is φ = 144144.

The previous prime is 290761. The next prime is 290767. The reversal of 290764 is 467092.

It is an interprime number because it is at equal distance from previous prime (290761) and next prime (290767).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (290761) 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 3 ways as a sum of consecutive naturals, for example, 397 + ... + 859.

2²⁹⁰⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

290764 is a deficient number, since it is larger than the sum of its proper divisors (222420).

290764 is a wasteful number, since it uses less digits than its factorization.

290764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 290764 is about 539.2253703230. The cubic root of 290764 is about 66.2491349122.

The spelling of 290764 in words is "two hundred ninety thousand, seven hundred sixty-four".