1967979 has 8 divisors (see below), whose sum is σ = 2825872. Its totient is φ = 1211040.

The previous prime is 1967947. The next prime is 1968017. The reversal of 1967979 is 9797691.

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

It is not a de Polignac number, because 1967979 - 2⁵ = 1967947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1967909) 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, 25192 + ... + 25269.

It is an arithmetic number, because the mean of its divisors is an integer number (353234).

2^1967979 is an apocalyptic number.

1967979 is a deficient number, since it is larger than the sum of its proper divisors (857893).

1967979 is a wasteful number, since it uses less digits than its factorization.

1967979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50477.

The product of its digits is 214326, while the sum is 48.

The square root of 1967979 is about 1402.8467485795. The cubic root of 1967979 is about 125.3160853799.

The spelling of 1967979 in words is "one million, nine hundred sixty-seven thousand, nine hundred seventy-nine".