1047285 has 36 divisors (see below), whose sum is σ = 1975428. Its totient is φ = 511488.

The previous prime is 1047283. The next prime is 1047289. The reversal of 1047285 is 5827401.

It can be written as a sum of positive squares in 6 ways, for example, as 269361 + 777924 = 519^2 + 882^2 .

It is not a de Polignac number, because 1047285 - 2¹ = 1047283 is a prime.

It is an Ulam number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047281) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28287 + ... + 28323.

It is an arithmetic number, because the mean of its divisors is an integer number (54873).

2^1047285 is an apocalyptic number.

1047285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1047285 is a deficient number, since it is larger than the sum of its proper divisors (928143).

1047285 is a wasteful number, since it uses less digits than its factorization.

1047285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1047285 is about 1023.3694347595. The cubic root of 1047285 is about 101.5519563808.

The spelling of 1047285 in words is "one million, forty-seven thousand, two hundred eighty-five".