3621447 has 6 divisors (see below), whose sum is σ = 5230992. Its totient is φ = 2414292.

The previous prime is 3621403. The next prime is 3621461. The reversal of 3621447 is 7441263.

3621447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3621447 - 2¹² = 3617351 is a prime.

It is a super-2 number, since 2×3621447² = 26229756747618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3621447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201183 + ... + 201200.

It is an arithmetic number, because the mean of its divisors is an integer number (871832).

Almost surely, 2^3621447 is an apocalyptic number.

3621447 is a deficient number, since it is larger than the sum of its proper divisors (1609545).

3621447 is a wasteful number, since it uses less digits than its factorization.

3621447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402389 (or 402386 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 3621447 is about 1903.0099842092. The cubic root of 3621447 is about 153.5656366406.

The spelling of 3621447 in words is "three million, six hundred twenty-one thousand, four hundred forty-seven".