1979916 has 24 divisors (see below), whose sum is σ = 4656960. Its totient is φ = 654672.

The previous prime is 1979911. The next prime is 1979941. The reversal of 1979916 is 6199791.

It is a super-3 number, since 3×1979916³ = 23284212303336141888, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1979911) 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, 1075 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (194040).

2^1979916 is an apocalyptic number.

It is an amenable number.

1979916 is an abundant number, since it is smaller than the sum of its proper divisors (2677044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1979916 is a wasteful number, since it uses less digits than its factorization.

1979916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1331 counting only the distinct ones).

The product of its digits is 30618, while the sum is 42.

The square root of 1979916 is about 1407.0948795302. The cubic root of 1979916 is about 125.5689477917.

The spelling of 1979916 in words is "one million, nine hundred seventy-nine thousand, nine hundred sixteen".