1996939 has 16 divisors (see below), whose sum is σ = 2455488. Its totient is φ = 1585152.

The previous prime is 1996937. The next prime is 1996949. The reversal of 1996939 is 9396991.

1996939 = T₅₇ + T₅₈ + ... + T₂₂₉.

It is a cyclic number.

It is not a de Polignac number, because 1996939 - 2¹ = 1996937 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11457 + ... + 11629.

It is an arithmetic number, because the mean of its divisors is an integer number (153468).

2^1996939 is an apocalyptic number.

1996939 is a deficient number, since it is larger than the sum of its proper divisors (458549).

1996939 is a wasteful number, since it uses less digits than its factorization.

1996939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294.

The product of its digits is 118098, while the sum is 46.

The square root of 1996939 is about 1413.1309210402. The cubic root of 1996939 is about 125.9277951974.

The spelling of 1996939 in words is "one million, nine hundred ninety-six thousand, nine hundred thirty-nine".