4020947 has 8 divisors (see below), whose sum is σ = 4632576. Its totient is φ = 3418632.

The previous prime is 4020923. The next prime is 4020949. The reversal of 4020947 is 7490204.

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

It is not a de Polignac number, because 4020947 - 2⁸ = 4020691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020949) 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, 1373 + ... + 3150.

It is an arithmetic number, because the mean of its divisors is an integer number (579072).

Almost surely, 2^4020947 is an apocalyptic number.

4020947 is a deficient number, since it is larger than the sum of its proper divisors (611629).

4020947 is a wasteful number, since it uses less digits than its factorization.

4020947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4657.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 4020947 is about 2005.2299120051. The cubic root of 4020947 is about 159.0167169903.

The spelling of 4020947 in words is "four million, twenty thousand, nine hundred forty-seven".