1934021 has 2 divisors, whose sum is σ = 1934022. Its totient is φ = 1934020.

The previous prime is 1933993. The next prime is 1934041. The reversal of 1934021 is 1204391.

It is an a-pointer prime, because the next prime (1934041) can be obtained adding 1934021 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 57121 = 1370^2 + 239^2 .

It is a cyclic number.

It is not a de Polignac number, because 1934021 - 2⁶ = 1933957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1933984 and 1934002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1934041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967010 + 967011.

It is an arithmetic number, because the mean of its divisors is an integer number (967011).

2^1934021 is an apocalyptic number.

It is an amenable number.

1934021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1934021 is an equidigital number, since it uses as much as digits as its factorization.

1934021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1934021 is about 1390.6908355202. The cubic root of 1934021 is about 124.5911119428.

The spelling of 1934021 in words is "one million, nine hundred thirty-four thousand, twenty-one".