905263 has 4 divisors (see below), whose sum is σ = 914328. Its totient is φ = 896200.

The previous prime is 905249. The next prime is 905269. The reversal of 905263 is 362509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362509 = 7 ⋅51787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-905263 is a prime.

It is an Ulam number.

It is a Duffinian number.

905263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905269) 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, 4381 + ... + 4582.

It is an arithmetic number, because the mean of its divisors is an integer number (228582).

2⁹⁰⁵²⁶³ is an apocalyptic number.

905263 is a deficient number, since it is larger than the sum of its proper divisors (9065).

905263 is a wasteful number, since it uses less digits than its factorization.

905263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9064.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 905263 is about 951.4530992119. The cubic root of 905263 is about 96.7367717115.

The spelling of 905263 in words is "nine hundred five thousand, two hundred sixty-three".