1979849 has 8 divisors (see below), whose sum is σ = 2077152. Its totient is φ = 1884960.

The previous prime is 1979827. The next prime is 1979891. The reversal of 1979849 is 9489791.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1979849 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1979899) 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, 1202 + ... + 2324.

It is an arithmetic number, because the mean of its divisors is an integer number (259644).

2^1979849 is an apocalyptic number.

It is an amenable number.

1979849 is a deficient number, since it is larger than the sum of its proper divisors (97303).

1979849 is a wasteful number, since it uses less digits than its factorization.

1979849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207.

The product of its digits is 163296, while the sum is 47.

The square root of 1979849 is about 1407.0710714104. The cubic root of 1979849 is about 125.5675313655.

The spelling of 1979849 in words is "one million, nine hundred seventy-nine thousand, eight hundred forty-nine".