1010643 has 16 divisors (see below), whose sum is σ = 1430016. Its totient is φ = 633600.

The previous prime is 1010627. The next prime is 1010671. The reversal of 1010643 is 3460101.

It is not a de Polignac number, because 1010643 - 2⁴ = 1010627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1010623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6618 + ... + 6768.

It is an arithmetic number, because the mean of its divisors is an integer number (89376).

2^1010643 is an apocalyptic number.

1010643 is a deficient number, since it is larger than the sum of its proper divisors (419373).

1010643 is a wasteful number, since it uses less digits than its factorization.

1010643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1010643 is about 1005.3074156695. The cubic root of 1010643 is about 100.3535154622.

Adding to 1010643 its reverse (3460101), we get a palindrome (4470744).

It can be divided in two parts, 1010 and 643, that added together give a triangular number (1653 = T₅₇).

The spelling of 1010643 in words is "one million, ten thousand, six hundred forty-three".