1421933 has 2 divisors, whose sum is σ = 1421934. Its totient is φ = 1421932.

The previous prime is 1421911. The next prime is 1421963. The reversal of 1421933 is 3391241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1087849 + 334084 = 1043^2 + 578^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421933 - 2⁸ = 1421677 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421899 and 1421908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710966 + 710967.

It is an arithmetic number, because the mean of its divisors is an integer number (710967).

2^1421933 is an apocalyptic number.

It is an amenable number.

1421933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421933 is an equidigital number, since it uses as much as digits as its factorization.

1421933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 1421933 is about 1192.4483217314. The cubic root of 1421933 is about 112.4500650817.

The spelling of 1421933 in words is "one million, four hundred twenty-one thousand, nine hundred thirty-three".