1020971 has 8 divisors (see below), whose sum is σ = 1175520. Its totient is φ = 868608.

The previous prime is 1020967. The next prime is 1020973. The reversal of 1020971 is 1790201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020971 - 2² = 1020967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020973) 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 7 ways as a sum of consecutive naturals, for example, 635 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (146940).

2^1020971 is an apocalyptic number.

1020971 is a deficient number, since it is larger than the sum of its proper divisors (154549).

1020971 is an equidigital number, since it uses as much as digits as its factorization.

1020971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1020971 is about 1010.4310961169. The cubic root of 1020971 is about 100.6942030036.

It can be divided in two parts, 1020 and 971, that added together give a palindrome (1991).

The spelling of 1020971 in words is "one million, twenty thousand, nine hundred seventy-one".