6842545 has 4 divisors (see below), whose sum is σ = 8211060. Its totient is φ = 5474032.

The previous prime is 6842503. The next prime is 6842557. The reversal of 6842545 is 5452486.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4260096 + 2582449 = 2064^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 6842545 - 2⁷ = 6842417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6842545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684250 + ... + 684259.

It is an arithmetic number, because the mean of its divisors is an integer number (2052765).

Almost surely, 2^6842545 is an apocalyptic number.

It is an amenable number.

6842545 is a deficient number, since it is larger than the sum of its proper divisors (1368515).

6842545 is a wasteful number, since it uses less digits than its factorization.

6842545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368514.

The product of its digits is 38400, while the sum is 34.

The square root of 6842545 is about 2615.8258734098. The cubic root of 6842545 is about 189.8479392771.

The spelling of 6842545 in words is "six million, eight hundred forty-two thousand, five hundred forty-five".