1641896 has 8 divisors (see below), whose sum is σ = 3078570. Its totient is φ = 820944.

The previous prime is 1641889. The next prime is 1641907. The reversal of 1641896 is 6981461.

It can be written as a sum of positive squares in only one way, i.e., 1473796 + 168100 = 1214^2 + 410^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102611 + ... + 102626.

2^1641896 is an apocalyptic number.

It is an amenable number.

1641896 is a deficient number, since it is larger than the sum of its proper divisors (1436674).

1641896 is a wasteful number, since it uses less digits than its factorization.

1641896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205243 (or 205239 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 1641896 is about 1281.3648972873. The cubic root of 1641896 is about 117.9727984795.

The spelling of 1641896 in words is "one million, six hundred forty-one thousand, eight hundred ninety-six".