1469989 has 4 divisors (see below), whose sum is σ = 1517440. Its totient is φ = 1422540.

The previous prime is 1469987. The next prime is 1470023. The reversal of 1469989 is 9899641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1469989 - 2¹ = 1469987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1469983) 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 3 ways as a sum of consecutive naturals, for example, 23679 + ... + 23740.

It is an arithmetic number, because the mean of its divisors is an integer number (379360).

2^1469989 is an apocalyptic number.

It is an amenable number.

1469989 is a deficient number, since it is larger than the sum of its proper divisors (47451).

1469989 is an equidigital number, since it uses as much as digits as its factorization.

1469989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47450.

The product of its digits is 139968, while the sum is 46.

The square root of 1469989 is about 1212.4310289662. The cubic root of 1469989 is about 113.7028529001.

The spelling of 1469989 in words is "one million, four hundred sixty-nine thousand, nine hundred eighty-nine".