1072747 has 8 divisors (see below), whose sum is σ = 1164240. Its totient is φ = 982560.

The previous prime is 1072733. The next prime is 1072763. The reversal of 1072747 is 7472701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1072747 - 2¹⁵ = 1039979 is a prime.

It is a super-3 number, since 3×1072747³ = 3703507092953330169, which contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a Duffinian number.

1072747 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1072147) 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 7 ways as a sum of consecutive naturals, for example, 2097 + ... + 2557.

It is an arithmetic number, because the mean of its divisors is an integer number (145530).

2^1072747 is an apocalyptic number.

1072747 is a deficient number, since it is larger than the sum of its proper divisors (91493).

1072747 is a wasteful number, since it uses less digits than its factorization.

1072747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 1072747 is about 1035.7350047189. The cubic root of 1072747 is about 102.3683656249.

The spelling of 1072747 in words is "one million, seventy-two thousand, seven hundred forty-seven".