3620389 has 8 divisors (see below), whose sum is σ = 3778560. Its totient is φ = 3464496.

The previous prime is 3620387. The next prime is 3620401. The reversal of 3620389 is 9830263.

It is a happy number.

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 3620389 - 2¹ = 3620387 is a prime.

It is a super-2 number, since 2×3620389² = 26214433022642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3620389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3192 + ... + 4174.

It is an arithmetic number, because the mean of its divisors is an integer number (472320).

Almost surely, 2^3620389 is an apocalyptic number.

It is an amenable number.

3620389 is a deficient number, since it is larger than the sum of its proper divisors (158171).

3620389 is a wasteful number, since it uses less digits than its factorization.

3620389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3620389 is about 1902.7319832283. The cubic root of 3620389 is about 153.5506805316.

The spelling of 3620389 in words is "three million, six hundred twenty thousand, three hundred eighty-nine".