6078781 has 8 divisors (see below), whose sum is σ = 6253280. Its totient is φ = 5905872.

The previous prime is 6078763. The next prime is 6078791. The reversal of 6078781 is 1878706.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6078781 - 2⁵ = 6078749 is a prime.

It is a super-2 number, since 2×6078781² = 73903156891922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6078781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6078731) 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, 15850 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (781660).

Almost surely, 2^6078781 is an apocalyptic number.

It is an amenable number.

6078781 is a deficient number, since it is larger than the sum of its proper divisors (174499).

6078781 is a wasteful number, since it uses less digits than its factorization.

6078781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 6078781 is about 2465.5184039062. The cubic root of 6078781 is about 182.5039068407.

It can be divided in two parts, 6078 and 781, that added together give a cube (6859 = 19³).

The spelling of 6078781 in words is "six million, seventy-eight thousand, seven hundred eighty-one".