4209947 has 8 divisors (see below), whose sum is σ = 4849152. Its totient is φ = 3580200.

The previous prime is 4209937. The next prime is 4209977. The reversal of 4209947 is 7499024.

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 4209947 - 2⁶ = 4209883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4209937) 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, 1379 + ... + 3212.

It is an arithmetic number, because the mean of its divisors is an integer number (606144).

Almost surely, 2^4209947 is an apocalyptic number.

4209947 is a deficient number, since it is larger than the sum of its proper divisors (639205).

4209947 is a wasteful number, since it uses less digits than its factorization.

4209947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 4209947 is about 2051.8155375179. The cubic root of 4209947 is about 161.4701354101.

The spelling of 4209947 in words is "four million, two hundred nine thousand, nine hundred forty-seven".