6209945 has 8 divisors (see below), whose sum is σ = 8516544. Its totient is φ = 4258224.

The previous prime is 6209939. The next prime is 6209963. The reversal of 6209945 is 5499026.

6209945 is digitally balanced in base 8, 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 a cyclic number.

It is not a de Polignac number, because 6209945 - 2¹⁶ = 6144409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 177427 = 6209945 / (6 + 2 + 0 + 9 + 9 + 4 + 5).

It is a Duffinian number.

6209945 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88679 + ... + 88748.

It is an arithmetic number, because the mean of its divisors is an integer number (1064568).

Almost surely, 2^6209945 is an apocalyptic number.

It is an amenable number.

6209945 is a deficient number, since it is larger than the sum of its proper divisors (2306599).

6209945 is a wasteful number, since it uses less digits than its factorization.

6209945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177439.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 6209945 is about 2491.9761234811. The cubic root of 6209945 is about 183.8072276129.

The spelling of 6209945 in words is "six million, two hundred nine thousand, nine hundred forty-five".