3621227 has 4 divisors (see below), whose sum is σ = 3719136. Its totient is φ = 3523320.

The previous prime is 3621223. The next prime is 3621239. The reversal of 3621227 is 7221263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7221263 = 7 ⋅1031609.

It is a cyclic number.

It is not a de Polignac number, because 3621227 - 2² = 3621223 is a prime.

It is a super-2 number, since 2×3621227² = 26226569971058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3621223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48899 + ... + 48972.

It is an arithmetic number, because the mean of its divisors is an integer number (929784).

Almost surely, 2^3621227 is an apocalyptic number.

3621227 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3621227 is a deficient number, since it is larger than the sum of its proper divisors (97909).

3621227 is an equidigital number, since it uses as much as digits as its factorization.

3621227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97908.

The product of its digits is 1008, while the sum is 23.

The square root of 3621227 is about 1902.9521801664. The cubic root of 3621227 is about 153.5625269146.

It can be divided in two parts, 3 and 621227, that multiplied together give a palindrome (1863681).

The spelling of 3621227 in words is "three million, six hundred twenty-one thousand, two hundred twenty-seven".