1979115 has 8 divisors (see below), whose sum is σ = 3166608. Its totient is φ = 1055520.

The previous prime is 1979101. The next prime is 1979119. The reversal of 1979115 is 5119791.

It is a happy number.

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

It is not a de Polignac number, because 1979115 - 2⁶ = 1979051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1979119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65956 + ... + 65985.

It is an arithmetic number, because the mean of its divisors is an integer number (395826).

2^1979115 is an apocalyptic number.

1979115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1979115 is a deficient number, since it is larger than the sum of its proper divisors (1187493).

1979115 is a wasteful number, since it uses less digits than its factorization.

1979115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131949.

The product of its digits is 2835, while the sum is 33.

The square root of 1979115 is about 1406.8102217428. The cubic root of 1979115 is about 125.5520120069.

The spelling of 1979115 in words is "one million, nine hundred seventy-nine thousand, one hundred fifteen".