3620409 has 8 divisors (see below), whose sum is σ = 5198592. Its totient is φ = 2227920.

The previous prime is 3620401. The next prime is 3620437. The reversal of 3620409 is 9040263.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3620409 - 2³ = 3620401 is a prime.

It is a super-2 number, since 2×3620409² = 26214722654562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3620401) 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, 46377 + ... + 46454.

It is an arithmetic number, because the mean of its divisors is an integer number (649824).

Almost surely, 2^3620409 is an apocalyptic number.

3620409 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3620409 is a deficient number, since it is larger than the sum of its proper divisors (1578183).

3620409 is a wasteful number, since it uses less digits than its factorization.

3620409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92847.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3620409 is about 1902.7372388220. The cubic root of 3620409 is about 153.5509632828.

The spelling of 3620409 in words is "three million, six hundred twenty thousand, four hundred nine".