1020735 has 16 divisors (see below), whose sum is σ = 1814880. Its totient is φ = 544320.

The previous prime is 1020709. The next prime is 1020743. The reversal of 1020735 is 5370201.

It is not a de Polignac number, because 1020735 - 2⁹ = 1020223 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3646 + ... + 3915.

It is an arithmetic number, because the mean of its divisors is an integer number (113430).

2^1020735 is an apocalyptic number.

1020735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020735 is a deficient number, since it is larger than the sum of its proper divisors (794145).

1020735 is an equidigital number, since it uses as much as digits as its factorization.

1020735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575 (or 7569 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 1020735 is about 1010.3143075301. The cubic root of 1020735 is about 100.6864438334.

Adding to 1020735 its reverse (5370201), we get a palindrome (6390936).

It can be divided in two parts, 1020 and 735, that multiplied together give a triangular number (749700 = T₁₂₂₄).

The spelling of 1020735 in words is "one million, twenty thousand, seven hundred thirty-five".