1046905 has 4 divisors (see below), whose sum is σ = 1256292. Its totient is φ = 837520.

The previous prime is 1046897. The next prime is 1046917. The reversal of 1046905 is 5096401.

1046905 = 723² + 724².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5096401 = 151 ⋅33751.

It can be written as a sum of positive squares in 2 ways, for example, as 522729 + 524176 = 723^2 + 724^2 .

It is not a de Polignac number, because 1046905 - 2³ = 1046897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1046905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104686 + ... + 104695.

It is an arithmetic number, because the mean of its divisors is an integer number (314073).

2^1046905 is an apocalyptic number.

1046905 is the 724-th centered square number.

It is an amenable number.

1046905 is a deficient number, since it is larger than the sum of its proper divisors (209387).

1046905 is an equidigital number, since it uses as much as digits as its factorization.

1046905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209386.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1046905 is about 1023.1837567124. The cubic root of 1046905 is about 101.5396724238.

The spelling of 1046905 in words is "one million, forty-six thousand, nine hundred five".