3621738 has 8 divisors (see below), whose sum is σ = 7243488. Its totient is φ = 1207244.

The previous prime is 3621733. The next prime is 3621767. The reversal of 3621738 is 8371263.

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

3621738 is an admirable number.

It is a super-2 number, since 2×3621738² = 26233972281288, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3621733) 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, 301806 + ... + 301817.

It is an arithmetic number, because the mean of its divisors is an integer number (905436).

Almost surely, 2^3621738 is an apocalyptic number.

3621738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3621738 is a wasteful number, since it uses less digits than its factorization.

3621738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603628.

The product of its digits is 6048, while the sum is 30.

The square root of 3621738 is about 1903.0864404961. The cubic root of 3621738 is about 153.5697497666.

The spelling of 3621738 in words is "three million, six hundred twenty-one thousand, seven hundred thirty-eight".