3621061 has 4 divisors (see below), whose sum is σ = 3642912. Its totient is φ = 3599212.

The previous prime is 3621049. The next prime is 3621067. The reversal of 3621061 is 1601263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3621061 - 2⁷ = 3620933 is a prime.

It is a super-2 number, since 2×3621061² = 26224165531442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621067) 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, 10675 + ... + 11008.

It is an arithmetic number, because the mean of its divisors is an integer number (910728).

Almost surely, 2^3621061 is an apocalyptic number.

It is an amenable number.

3621061 is a deficient number, since it is larger than the sum of its proper divisors (21851).

3621061 is a wasteful number, since it uses less digits than its factorization.

3621061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21850.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3621061 is about 1902.9085632263. The cubic root of 3621061 is about 153.5601804015.

The spelling of 3621061 in words is "three million, six hundred twenty-one thousand, sixty-one".