1072761 has 4 divisors (see below), whose sum is σ = 1430352. Its totient is φ = 715172.

The previous prime is 1072733. The next prime is 1072763. The reversal of 1072761 is 1672701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1672701 = 3 ⋅557567.

It is a cyclic number.

It is not a de Polignac number, because 1072761 - 2⁷ = 1072633 is a prime.

It is a D-number.

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

It is not an unprimeable number, because it can be changed into a prime (1072763) 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 3 ways as a sum of consecutive naturals, for example, 178791 + ... + 178796.

It is an arithmetic number, because the mean of its divisors is an integer number (357588).

2^1072761 is an apocalyptic number.

It is an amenable number.

1072761 is a deficient number, since it is larger than the sum of its proper divisors (357591).

1072761 is an equidigital number, since it uses as much as digits as its factorization.

1072761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357590.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 1072761 is about 1035.7417631823. The cubic root of 1072761 is about 102.3688109461.

It can be divided in two parts, 10 and 72761, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 1072761 in words is "one million, seventy-two thousand, seven hundred sixty-one".