3621947 has 8 divisors (see below), whose sum is σ = 4273152. Its totient is φ = 3004200.

The previous prime is 3621941. The next prime is 3621973. The reversal of 3621947 is 7491263.

3621947 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 3621947 - 2⁴ = 3621931 is a prime.

It is a Duffinian number.

3621947 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (3621941) 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, 8129 + ... + 8562.

It is an arithmetic number, because the mean of its divisors is an integer number (534144).

Almost surely, 2^3621947 is an apocalyptic number.

3621947 is a deficient number, since it is larger than the sum of its proper divisors (651205).

3621947 is a wasteful number, since it uses less digits than its factorization.

3621947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16729.

The product of its digits is 9072, while the sum is 32.

The square root of 3621947 is about 1903.1413505045. The cubic root of 3621947 is about 153.5727037315.

The spelling of 3621947 in words is "three million, six hundred twenty-one thousand, nine hundred forty-seven".