1970641 has 2 divisors, whose sum is σ = 1970642. Its totient is φ = 1970640.

The previous prime is 1970629. The next prime is 1970677. The reversal of 1970641 is 1460791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1430416 + 540225 = 1196^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970641 - 2⁷ = 1970513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1970621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985320 + 985321.

It is an arithmetic number, because the mean of its divisors is an integer number (985321).

2^1970641 is an apocalyptic number.

It is an amenable number.

1970641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970641 is an equidigital number, since it uses as much as digits as its factorization.

1970641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1970641 is about 1403.7952129851. The cubic root of 1970641 is about 125.3725631371.

The spelling of 1970641 in words is "one million, nine hundred seventy thousand, six hundred forty-one".