1996481 has 2 divisors, whose sum is σ = 1996482. Its totient is φ = 1996480.

The previous prime is 1996471. The next prime is 1996487. The reversal of 1996481 is 1846991.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 36481 = 1400^2 + 191^2 .

It is a cyclic number.

It is not a de Polignac number, because 1996481 - 2⁶ = 1996417 is a prime.

It is a super-2 number, since 2×1996481² = 7971872766722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998240 + 998241.

It is an arithmetic number, because the mean of its divisors is an integer number (998241).

2^1996481 is an apocalyptic number.

It is an amenable number.

1996481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996481 is an equidigital number, since it uses as much as digits as its factorization.

1996481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 38.

The square root of 1996481 is about 1412.9688602372. The cubic root of 1996481 is about 125.9181672384.

The spelling of 1996481 in words is "one million, nine hundred ninety-six thousand, four hundred eighty-one".