6156789 has 8 divisors (see below), whose sum is σ = 8258880. Its totient is φ = 4079616.

The previous prime is 6156781. The next prime is 6156793. The reversal of 6156789 is 9876516.

6156789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6156789 - 2³ = 6156781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6156789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6156781) 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, 5644 + ... + 6645.

It is an arithmetic number, because the mean of its divisors is an integer number (1032360).

Almost surely, 2^6156789 is an apocalyptic number.

It is an amenable number.

6156789 is a deficient number, since it is larger than the sum of its proper divisors (2102091).

6156789 is a wasteful number, since it uses less digits than its factorization.

6156789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12459.

The product of its digits is 90720, while the sum is 42.

The square root of 6156789 is about 2481.2877704934. The cubic root of 6156789 is about 183.2812719025.

The spelling of 6156789 in words is "six million, one hundred fifty-six thousand, seven hundred eighty-nine".