3621958 has 4 divisors (see below), whose sum is σ = 5432940. Its totient is φ = 1810978.

The previous prime is 3621941. The next prime is 3621973. The reversal of 3621958 is 8591263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8591263 = 41 ⋅209543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 905488 + ... + 905491.

It is an arithmetic number, because the mean of its divisors is an integer number (1358235).

Almost surely, 2^3621958 is an apocalyptic number.

3621958 is a deficient number, since it is larger than the sum of its proper divisors (1810982).

3621958 is a wasteful number, since it uses less digits than its factorization.

3621958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810981.

The product of its digits is 12960, while the sum is 34.

The square root of 3621958 is about 1903.1442404610. The cubic root of 3621958 is about 153.5728592001.

The spelling of 3621958 in words is "three million, six hundred twenty-one thousand, nine hundred fifty-eight".