1478878 has 4 divisors (see below), whose sum is σ = 2218320. Its totient is φ = 739438.

The previous prime is 1478863. The next prime is 1478887. The reversal of 1478878 is 8788741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8788741 = 13 ⋅676057.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 369718 + ... + 369721.

It is an arithmetic number, because the mean of its divisors is an integer number (554580).

2^1478878 is an apocalyptic number.

1478878 is a deficient number, since it is larger than the sum of its proper divisors (739442).

1478878 is an equidigital number, since it uses as much as digits as its factorization.

1478878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739441.

The product of its digits is 100352, while the sum is 43.

The square root of 1478878 is about 1216.0912794688. The cubic root of 1478878 is about 113.9315789286.

It can be divided in two parts, 147 and 8878, that added together give a square (9025 = 95²).

The spelling of 1478878 in words is "one million, four hundred seventy-eight thousand, eight hundred seventy-eight".