283821401 has 2 divisors, whose sum is σ = 283821402. Its totient is φ = 283821400.

The previous prime is 283821389. The next prime is 283821407. The reversal of 283821401 is 104128382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281568400 + 2253001 = 16780^2 + 1501^2 .

It is a cyclic number.

It is not a de Polignac number, because 283821401 - 2¹⁴ = 283805017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (283821407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141910700 + 141910701.

It is an arithmetic number, because the mean of its divisors is an integer number (141910701).

Almost surely, 2^283821401 is an apocalyptic number.

It is an amenable number.

283821401 is a deficient number, since it is larger than the sum of its proper divisors (1).

283821401 is an equidigital number, since it uses as much as digits as its factorization.

283821401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 283821401 is about 16846.9997625690. Note that the first 3 decimals coincide. The cubic root of 283821401 is about 657.1760279930.

Adding to 283821401 its reverse (104128382), we get a palindrome (387949783).

The spelling of 283821401 in words is "two hundred eighty-three million, eight hundred twenty-one thousand, four hundred one".