1489821 has 8 divisors (see below), whose sum is σ = 2032800. Its totient is φ = 970032.

The previous prime is 1489819. The next prime is 1489841. The reversal of 1489821 is 1289841.

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

It is not a de Polignac number, because 1489821 - 2¹ = 1489819 is a prime.

It is a super-2 number, since 2×1489821² = 4439133224082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5646 + ... + 5903.

It is an arithmetic number, because the mean of its divisors is an integer number (254100).

2^1489821 is an apocalyptic number.

It is an amenable number.

1489821 is a deficient number, since it is larger than the sum of its proper divisors (542979).

1489821 is a wasteful number, since it uses less digits than its factorization.

1489821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11595.

The product of its digits is 4608, while the sum is 33.

The square root of 1489821 is about 1220.5822381143. The cubic root of 1489821 is about 114.2119019660.

The spelling of 1489821 in words is "one million, four hundred eighty-nine thousand, eight hundred twenty-one".