3621158 has 4 divisors (see below), whose sum is σ = 5431740. Its totient is φ = 1810578.

The previous prime is 3621157. The next prime is 3621181. The reversal of 3621158 is 8511263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8511263 = 503 ⋅16921.

It is a super-2 number, since 2×3621158² = 26225570521928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 905288 + ... + 905291.

It is an arithmetic number, because the mean of its divisors is an integer number (1357935).

Almost surely, 2^3621158 is an apocalyptic number.

3621158 is a deficient number, since it is larger than the sum of its proper divisors (1810582).

3621158 is a wasteful number, since it uses less digits than its factorization.

3621158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810581.

The product of its digits is 1440, while the sum is 26.

The square root of 3621158 is about 1902.9340503549. The cubic root of 3621158 is about 153.5615515654.

The spelling of 3621158 in words is "three million, six hundred twenty-one thousand, one hundred fifty-eight".