1478783 has 4 divisors (see below), whose sum is σ = 1488360. Its totient is φ = 1469208.

The previous prime is 1478777. The next prime is 1478809. The reversal of 1478783 is 3878741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1478783 - 2⁴ = 1478767 is a prime.

It is a super-2 number, since 2×1478783² = 4373598322178, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4553 + ... + 4866.

It is an arithmetic number, because the mean of its divisors is an integer number (372090).

2^1478783 is an apocalyptic number.

1478783 is a deficient number, since it is larger than the sum of its proper divisors (9577).

1478783 is an equidigital number, since it uses as much as digits as its factorization.

1478783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576.

The product of its digits is 37632, while the sum is 38.

The square root of 1478783 is about 1216.0522192735. The cubic root of 1478783 is about 113.9291393016.

The spelling of 1478783 in words is "one million, four hundred seventy-eight thousand, seven hundred eighty-three".