1559878 has 4 divisors (see below), whose sum is σ = 2339820. Its totient is φ = 779938.

The previous prime is 1559851. The next prime is 1559879. The reversal of 1559878 is 8789551.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1559879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389968 + ... + 389971.

It is an arithmetic number, because the mean of its divisors is an integer number (584955).

2^1559878 is an apocalyptic number.

1559878 is a deficient number, since it is larger than the sum of its proper divisors (779942).

1559878 is an equidigital number, since it uses as much as digits as its factorization.

1559878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779941.

The product of its digits is 100800, while the sum is 43.

The square root of 1559878 is about 1248.9507596379. The cubic root of 1559878 is about 115.9747765213.

The spelling of 1559878 in words is "one million, five hundred fifty-nine thousand, eight hundred seventy-eight".