1064781 has 12 divisors (see below), whose sum is σ = 1548508. Its totient is φ = 705024.

The previous prime is 1064771. The next prime is 1064783. The reversal of 1064781 is 1874601.

It is a happy number.

1064781 is a `hidden beast` number, since 10 + 647 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 84681 + 980100 = 291^2 + 990^2 .

It is not a de Polignac number, because 1064781 - 2⁷ = 1064653 is a prime.

It is a super-2 number, since 2×1064781² = 2267517155922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064783) 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 11 ways as a sum of consecutive naturals, for example, 1431 + ... + 2043.

2^1064781 is an apocalyptic number.

It is an amenable number.

1064781 is a deficient number, since it is larger than the sum of its proper divisors (483727).

1064781 is a wasteful number, since it uses less digits than its factorization.

1064781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1064781 is about 1031.8822607255. The cubic root of 1064781 is about 102.1143469654.

The spelling of 1064781 in words is "one million, sixty-four thousand, seven hundred eighty-one".