5939781 has 8 divisors (see below), whose sum is σ = 7970784. Its totient is φ = 3934320.

The previous prime is 5939779. The next prime is 5939797. The reversal of 5939781 is 1879395.

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 5939781 - 2¹ = 5939779 is a prime.

It is a super-2 number, since 2×5939781² = 70561996655922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5939581) 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, 5835 + ... + 6776.

It is an arithmetic number, because the mean of its divisors is an integer number (996348).

Almost surely, 2^5939781 is an apocalyptic number.

It is an amenable number.

5939781 is a deficient number, since it is larger than the sum of its proper divisors (2031003).

5939781 is a wasteful number, since it uses less digits than its factorization.

5939781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12771.

The product of its digits is 68040, while the sum is 42.

The square root of 5939781 is about 2437.1665925825. The cubic root of 5939781 is about 181.1020963837.

The spelling of 5939781 in words is "five million, nine hundred thirty-nine thousand, seven hundred eighty-one".