1079521 has 3 divisors (see below), whose sum is σ = 1080561. Its totient is φ = 1078482.

The previous prime is 1079509. The next prime is 1079527. The reversal of 1079521 is 1259701.

The square root of 1079521 is 1039.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1079521 - 2⁹ = 1079009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1079527) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 520 + ... + 1558.

It is an arithmetic number, because the mean of its divisors is an integer number (360187).

2^1079521 is an apocalyptic number.

1079521 is the 1039-th square number.

1079521 is the 520-th centered octagonal number.

It is an amenable number.

1079521 is a deficient number, since it is larger than the sum of its proper divisors (1040).

1079521 is an frugal number, since it uses more digits than its factorization.

1079521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The cubic root of 1079521 is about 102.5833864376.

Multiplying 1079521 by its sum of digits (25), we get a square (26988025 = 5195²).

It can be divided in two parts, 10795 and 21, that added together give a square (10816 = 104²).

The spelling of 1079521 in words is "one million, seventy-nine thousand, five hundred twenty-one".