1968039 has 24 divisors (see below), whose sum is σ = 3173040. Its totient is φ = 1168128.

The previous prime is 1968023. The next prime is 1968047. The reversal of 1968039 is 9308691.

It is not a de Polignac number, because 1968039 - 2⁴ = 1968023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1967994 and 1968012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2569 + ... + 3245.

It is an arithmetic number, because the mean of its divisors is an integer number (132210).

2^1968039 is an apocalyptic number.

1968039 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1968039 is a deficient number, since it is larger than the sum of its proper divisors (1205001).

1968039 is a wasteful number, since it uses less digits than its factorization.

1968039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1968039 is about 1402.8681335036. The cubic root of 1968039 is about 125.3173589180.

The spelling of 1968039 in words is "one million, nine hundred sixty-eight thousand, thirty-nine".