3621279 has 4 divisors (see below), whose sum is σ = 4828376. Its totient is φ = 2414184.

The previous prime is 3621271. The next prime is 3621287. The reversal of 3621279 is 9721263.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3621271) and next prime (3621287).

It is not a de Polignac number, because 3621279 - 2³ = 3621271 is a prime.

It is a super-2 number, since 2×3621279² = 26227323191682, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621271) 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 3 ways as a sum of consecutive naturals, for example, 603544 + ... + 603549.

It is an arithmetic number, because the mean of its divisors is an integer number (1207094).

Almost surely, 2^3621279 is an apocalyptic number.

3621279 is a deficient number, since it is larger than the sum of its proper divisors (1207097).

3621279 is a wasteful number, since it uses less digits than its factorization.

3621279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207096.

The product of its digits is 4536, while the sum is 30.

The square root of 3621279 is about 1902.9658430986. The cubic root of 3621279 is about 153.5632619521.

The spelling of 3621279 in words is "three million, six hundred twenty-one thousand, two hundred seventy-nine".