1985079 has 8 divisors (see below), whose sum is σ = 2738160. Its totient is φ = 1277696.

The previous prime is 1985077. The next prime is 1985167. The reversal of 1985079 is 9705891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1985079 - 2¹ = 1985077 is a prime.

1985079 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1985077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11322 + ... + 11495.

It is an arithmetic number, because the mean of its divisors is an integer number (342270).

2^1985079 is an apocalyptic number.

1985079 is a deficient number, since it is larger than the sum of its proper divisors (753081).

1985079 is a wasteful number, since it uses less digits than its factorization.

1985079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22849.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 1985079 is about 1408.9283161325. The cubic root of 1985079 is about 125.6780011994.

The spelling of 1985079 in words is "one million, nine hundred eighty-five thousand, seventy-nine".