1020579 has 16 divisors (see below), whose sum is σ = 1623552. Its totient is φ = 557568.

The previous prime is 1020557. The next prime is 1020583. The reversal of 1020579 is 9750201.

It is not a de Polignac number, because 1020579 - 2⁷ = 1020451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020529) 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 15 ways as a sum of consecutive naturals, for example, 574 + ... + 1539.

It is an arithmetic number, because the mean of its divisors is an integer number (101472).

2^1020579 is an apocalyptic number.

1020579 is a deficient number, since it is larger than the sum of its proper divisors (602973).

1020579 is a wasteful number, since it uses less digits than its factorization.

1020579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 1020579 is about 1010.2371008828. The cubic root of 1020579 is about 100.6813142339.

The spelling of 1020579 in words is "one million, twenty thousand, five hundred seventy-nine".