3820947 has 8 divisors (see below), whose sum is σ = 5486544. Its totient is φ = 2351328.

The previous prime is 3820933. The next prime is 3820963. The reversal of 3820947 is 7490283.

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

It is not a de Polignac number, because 3820947 - 2¹⁰ = 3819923 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3820987) 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, 48948 + ... + 49025.

It is an arithmetic number, because the mean of its divisors is an integer number (685818).

Almost surely, 2^3820947 is an apocalyptic number.

3820947 is a deficient number, since it is larger than the sum of its proper divisors (1665597).

3820947 is a wasteful number, since it uses less digits than its factorization.

3820947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97989.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 3820947 is about 1954.7242772320. The cubic root of 3820947 is about 156.3352831496.

The spelling of 3820947 in words is "three million, eight hundred twenty thousand, nine hundred forty-seven".