1979494 has 8 divisors (see below), whose sum is σ = 3239208. Its totient is φ = 899760.

The previous prime is 1979491. The next prime is 1979507. The reversal of 1979494 is 4949791.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1979494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979491) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 44967 + ... + 45010.

It is an arithmetic number, because the mean of its divisors is an integer number (404901).

2^1979494 is an apocalyptic number.

1979494 is a deficient number, since it is larger than the sum of its proper divisors (1259714).

1979494 is a wasteful number, since it uses less digits than its factorization.

1979494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89990.

The product of its digits is 81648, while the sum is 43.

The square root of 1979494 is about 1406.9449171876. The cubic root of 1979494 is about 125.5600258877.

The spelling of 1979494 in words is "one million, nine hundred seventy-nine thousand, four hundred ninety-four".