920291 has 2 divisors, whose sum is σ = 920292. Its totient is φ = 920290.

The previous prime is 920281. The next prime is 920323. The reversal of 920291 is 192029.

920291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (192029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920291 - 2¹⁰ = 919267 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 920291.

It is not a weakly prime, because it can be changed into another prime (920201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460145 + 460146.

It is an arithmetic number, because the mean of its divisors is an integer number (460146).

2⁹²⁰²⁹¹ is an apocalyptic number.

920291 is a deficient number, since it is larger than the sum of its proper divisors (1).

920291 is an equidigital number, since it uses as much as digits as its factorization.

920291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 920291 is about 959.3179869053. The cubic root of 920291 is about 97.2691360100.

The spelling of 920291 in words is "nine hundred twenty thousand, two hundred ninety-one".