1072787 has 4 divisors (see below), whose sum is σ = 1078896. Its totient is φ = 1066680.

The previous prime is 1072763. The next prime is 1072793. The reversal of 1072787 is 7872701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7872701 = 67 ⋅117503.

It is a cyclic number.

It is not a de Polignac number, because 1072787 - 2¹⁸ = 810643 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072187) 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, 2783 + ... + 3144.

It is an arithmetic number, because the mean of its divisors is an integer number (269724).

2^1072787 is an apocalyptic number.

1072787 is a deficient number, since it is larger than the sum of its proper divisors (6109).

1072787 is an equidigital number, since it uses as much as digits as its factorization.

1072787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6108.

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 1072787 is about 1035.7543144974. The cubic root of 1072787 is about 102.3696379609.

The spelling of 1072787 in words is "one million, seventy-two thousand, seven hundred eighty-seven".