1283883821 has 8 divisors (see below), whose sum is σ = 1414469088. Its totient is φ = 1155610000.

The previous prime is 1283883803. The next prime is 1283883871.

1283883821 is nontrivially palindromic in base 10.

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 1283883821 - 2¹⁴ = 1283867437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283883871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576695 + ... + 578916.

It is an arithmetic number, because the mean of its divisors is an integer number (176808636).

Almost surely, 2^1283883821 is an apocalyptic number.

1283883821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1283883821 is a deficient number, since it is larger than the sum of its proper divisors (130585267).

1283883821 is a wasteful number, since it uses less digits than its factorization.

1283883821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155723.

The product of its digits is 147456, while the sum is 44.

The square root of 1283883821 is about 35831.3245778048. The cubic root of 1283883821 is about 1086.8640953319.

The spelling of 1283883821 in words is "one billion, two hundred eighty-three million, eight hundred eighty-three thousand, eight hundred twenty-one".