1478655 has 24 divisors (see below), whose sum is σ = 2660112. Its totient is φ = 787968.

The previous prime is 1478639. The next prime is 1478663. The reversal of 1478655 is 5568741.

It is a Cunningham number, because it is equal to 1216²-1.

It is not a de Polignac number, because 1478655 - 2⁴ = 1478639 is a prime.

1478655 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 607 + ... + 1823.

It is an arithmetic number, because the mean of its divisors is an integer number (110838).

2^1478655 is an apocalyptic number.

1478655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1478655 is a deficient number, since it is larger than the sum of its proper divisors (1181457).

1478655 is an equidigital number, since it uses as much as digits as its factorization.

1478655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237 (or 1225 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 1478655 is about 1215.9995888157. Note that the first 3 decimals coincide. The cubic root of 1478655 is about 113.9258520601.

It can be divided in two parts, 14786 and 55, that added together give a palindrome (14841).

The spelling of 1478655 in words is "one million, four hundred seventy-eight thousand, six hundred fifty-five".