1283993 has 8 divisors (see below), whose sum is σ = 1389312. Its totient is φ = 1182016.

The previous prime is 1283983. The next prime is 1284007. The reversal of 1283993 is 3993821.

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 1283993 - 2¹⁰ = 1282969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1283903) 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, 5 + ... + 1602.

It is an arithmetic number, because the mean of its divisors is an integer number (173664).

2^1283993 is an apocalyptic number.

It is an amenable number.

1283993 is a deficient number, since it is larger than the sum of its proper divisors (105319).

1283993 is a wasteful number, since it uses less digits than its factorization.

1283993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671.

The product of its digits is 11664, while the sum is 35.

The square root of 1283993 is about 1133.1341491633. The cubic root of 1283993 is about 108.6894902733.

The spelling of 1283993 in words is "one million, two hundred eighty-three thousand, nine hundred ninety-three".