1648465 has 16 divisors (see below), whose sum is σ = 2435328. Its totient is φ = 1043136.

The previous prime is 1648453. The next prime is 1648481. The reversal of 1648465 is 5648461.

It is a cyclic number.

It is not a de Polignac number, because 1648465 - 2⁹ = 1647953 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1648465.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1357 + ... + 2266.

It is an arithmetic number, because the mean of its divisors is an integer number (152208).

2^1648465 is an apocalyptic number.

It is an amenable number.

1648465 is a deficient number, since it is larger than the sum of its proper divisors (786863).

1648465 is a wasteful number, since it uses less digits than its factorization.

1648465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648.

The product of its digits is 23040, while the sum is 34.

The square root of 1648465 is about 1283.9256208987. The cubic root of 1648465 is about 118.1299201034.

The spelling of 1648465 in words is "one million, six hundred forty-eight thousand, four hundred sixty-five".