1630893 has 16 divisors (see below), whose sum is σ = 2408256. Its totient is φ = 973440.

The previous prime is 1630891. The next prime is 1630897. The reversal of 1630893 is 3980361.

It is not a de Polignac number, because 1630893 - 2¹ = 1630891 is a prime.

1630893 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1630893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2071 + ... + 2747.

It is an arithmetic number, because the mean of its divisors is an integer number (150516).

2^1630893 is an apocalyptic number.

It is an amenable number.

1630893 is a deficient number, since it is larger than the sum of its proper divisors (777363).

1630893 is a wasteful number, since it uses less digits than its factorization.

1630893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1630893 is about 1277.0642113848. The cubic root of 1630893 is about 117.7086800174.

The spelling of 1630893 in words is "one million, six hundred thirty thousand, eight hundred ninety-three".