906291 has 6 divisors (see below), whose sum is σ = 1309100. Its totient is φ = 604188.

The previous prime is 906289. The next prime is 906293. The reversal of 906291 is 192609.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (906289) and next prime (906293).

It is not a de Polignac number, because 906291 - 2¹ = 906289 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (906293) 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, 50341 + ... + 50358.

2⁹⁰⁶²⁹¹ is an apocalyptic number.

906291 is a deficient number, since it is larger than the sum of its proper divisors (402809).

906291 is a wasteful number, since it uses less digits than its factorization.

906291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100705 (or 100702 counting only the distinct ones).

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

The square root of 906291 is about 951.9931722444. The cubic root of 906291 is about 96.7733753587.

The spelling of 906291 in words is "nine hundred six thousand, two hundred ninety-one".