1493869 has 4 divisors (see below), whose sum is σ = 1608796. Its totient is φ = 1378944.

The previous prime is 1493867. The next prime is 1493879. The reversal of 1493869 is 9683941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9683941 = 29 ⋅333929.

It can be written as a sum of positive squares in 2 ways, for example, as 366025 + 1127844 = 605^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493869 - 2¹ = 1493867 is a prime.

It is a super-2 number, since 2×1493869² = 4463289178322, which contains 22 as substring.

It is a Duffinian number.

1493869 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57444 + ... + 57469.

It is an arithmetic number, because the mean of its divisors is an integer number (402199).

2^1493869 is an apocalyptic number.

It is an amenable number.

1493869 is a deficient number, since it is larger than the sum of its proper divisors (114927).

1493869 is a wasteful number, since it uses less digits than its factorization.

1493869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114926.

The product of its digits is 46656, while the sum is 40.

The square root of 1493869 is about 1222.2393382640. The cubic root of 1493869 is about 114.3152503273.

The spelling of 1493869 in words is "one million, four hundred ninety-three thousand, eight hundred sixty-nine".