1020993 has 8 divisors (see below), whose sum is σ = 1420608. Its totient is φ = 651024.

The previous prime is 1020991. The next prime is 1020997. The reversal of 1020993 is 3990201.

It is a happy number.

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

It is not a de Polignac number, because 1020993 - 2¹ = 1020991 is a prime.

1020993 is a lucky number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1020991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7330 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (177576).

2^1020993 is an apocalyptic number.

It is an amenable number.

1020993 is a deficient number, since it is larger than the sum of its proper divisors (399615).

1020993 is a wasteful number, since it uses less digits than its factorization.

1020993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14823.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 1020993 is about 1010.4419825007. The cubic root of 1020993 is about 100.6949262551.

The spelling of 1020993 in words is "one million, twenty thousand, nine hundred ninety-three".