906193 has 4 divisors (see below), whose sum is σ = 909220. Its totient is φ = 903168.

The previous prime is 906187. The next prime is 906197. The reversal of 906193 is 391609.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391609 = 19 ⋅20611.

It can be written as a sum of positive squares in 2 ways, for example, as 117649 + 788544 = 343^2 + 888^2 .

It is a 3-Lehmer number, since φ(906193) divides (906193-1)³.

It is a cyclic number.

It is not a de Polignac number, because 906193 - 2¹⁷ = 775121 is a prime.

It is a deceptive number, since it divides R₉₀₆₁₉₂.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (227305).

2⁹⁰⁶¹⁹³ is an apocalyptic number.

It is an amenable number.

906193 is a deficient number, since it is larger than the sum of its proper divisors (3027).

906193 is a wasteful number, since it uses less digits than its factorization.

906193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 906193 is about 951.9416998955. The cubic root of 906193 is about 96.7698870999.

The spelling of 906193 in words is "nine hundred six thousand, one hundred ninety-three".