1020770 has 8 divisors (see below), whose sum is σ = 1837404. Its totient is φ = 408304.

The previous prime is 1020757. The next prime is 1020779. The reversal of 1020770 is 770201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1002001 + 18769 = 1001^2 + 137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1020779) 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, 51029 + ... + 51048.

2^1020770 is an apocalyptic number.

1020770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020770 is a deficient number, since it is larger than the sum of its proper divisors (816634).

1020770 is a wasteful number, since it uses less digits than its factorization.

1020770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102084.

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 1020770 is about 1010.3316287240. The cubic root of 1020770 is about 100.6875946334.

Adding to 1020770 its reverse (770201), we get a palindrome (1790971).

The spelling of 1020770 in words is "one million, twenty thousand, seven hundred seventy".