1072865 has 8 divisors (see below), whose sum is σ = 1294440. Its totient is φ = 853632.

The previous prime is 1072859. The next prime is 1072867. The reversal of 1072865 is 5682701.

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 976144 = 311^2 + 988^2 .

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 1072865 - 2⁴ = 1072849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1072867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677 + ... + 1613.

It is an arithmetic number, because the mean of its divisors is an integer number (161805).

2^1072865 is an apocalyptic number.

It is an amenable number.

1072865 is a deficient number, since it is larger than the sum of its proper divisors (221575).

1072865 is an equidigital number, since it uses as much as digits as its factorization.

1072865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1072865 is about 1035.7919675302. The cubic root of 1072865 is about 102.3721189250.

The spelling of 1072865 in words is "one million, seventy-two thousand, eight hundred sixty-five".