1020577 has 4 divisors (see below), whose sum is σ = 1023300. Its totient is φ = 1017856.

The previous prime is 1020557. The next prime is 1020583. The reversal of 1020577 is 7750201.

1020577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 781456 + 239121 = 884^2 + 489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020577 - 2¹⁵ = 987809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688 + ... + 1585.

It is an arithmetic number, because the mean of its divisors is an integer number (255825).

2^1020577 is an apocalyptic number.

It is an amenable number.

1020577 is a deficient number, since it is larger than the sum of its proper divisors (2723).

1020577 is an equidigital number, since it uses as much as digits as its factorization.

1020577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 1020577 is about 1010.2361110156. The cubic root of 1020577 is about 100.6812484664.

Adding to 1020577 its reverse (7750201), we get a palindrome (8770778).

The spelling of 1020577 in words is "one million, twenty thousand, five hundred seventy-seven".