1648898 has 8 divisors (see below), whose sum is σ = 2618892. Its totient is φ = 775936.

The previous prime is 1648879. The next prime is 1648909. The reversal of 1648898 is 8988461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1646089 + 2809 = 1283^2 + 53^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1648898² = 5437729228808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24215 + ... + 24282.

2^1648898 is an apocalyptic number.

1648898 is a deficient number, since it is larger than the sum of its proper divisors (969994).

1648898 is a wasteful number, since it uses less digits than its factorization.

1648898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48516.

The product of its digits is 110592, while the sum is 44.

The square root of 1648898 is about 1284.0942333022. The cubic root of 1648898 is about 118.1402622050.

The spelling of 1648898 in words is "one million, six hundred forty-eight thousand, eight hundred ninety-eight".